QRO PA 144 MHz 20 kW

GU36B-1 v2

Designed: YU1AW

Builded: YU7MS yu7ms@sbb.rs & YU7PS yu7ps@sbb.rs

Many thanks to all our friends for realization of this project.

03.08.2013.

YU1AW YU7PS YU7MS

Idea to build this PA raised few years ago and thanks to Dragan YU1AW we were able to bring this this project to completion. YU1AW designed the RF deck and helpedus during adjustments and tuning with his countless and selfless suggestions. Our friend Teo YU7AR has supplied us with GU36B-1 tube and built 3 phase transformer for anode power supply. Amplifier itself was originally designed to operate in grounded G2 configuration. In order to avoid high negative voltage at G1 (to make input tuning less dangerous) we have rather switched to grounded cathode configuration. That change forced us to build a quality cooling capacitor for G2. The anode resonator has been slightly shortened compared to the original design. Its diameter is 184 mm and length 500mm. RF choke is connected 202mm away from the end of the resonator. Tune capacitor is 6.6pF, made from flexible brass sheet. Load capacitor is 2.7pF, with diameter of 100mm. Its capacitance changes by shifting the brass disc. Anode is being cooled by two radial turbines producing 76mm H2O and 985m3/h air flow. Two smaller turbines are used to cool down the cathode compartment and transformers for all other power supplies. Significant time was spent to adjust the input circuit. Finally we decided to use the version of the circuit shown in the schematic. SWR is not ideal one (1: 1.5) but power gain achieved this way is the best. Output signal is fed through low pass filter and then through power/swr probe. SWR measurement is accurate regardless of the output power. PA harbors home made coaxial antenna relay, LNA (MGF1302), power supplies for all control and bias voltages as well as protection circuits. LED indicators show power sequencing at start-up followed by CW sounding ("QRV"). Protection circuit brings PA to permanent receive state if it lacks any of the control/bias voltages. We are thankful to all friends who helped us to complete this project. It had been big and long time effort which at the end proved to be worthwhile. 73 Miška YU7MS

Results:

Cc 2p7

Ct 6p6

Φ 2.5/10, 0.5t, L60

Φ 2.3/29, 7t, L70

2 x Φ 5/30, 11t, L120 Φ 184 x 500 mm

Cptfe 3.4nF

Φ 1.5/12, 31t, L70

Φ 1.5/15, 24t, L70

202 mm

2 x

2n2 2

kV

3/1

0p

2n2 2kV

2x470p 15kV

-

17p 1

0kV

10/25p

6 x 3n3+1n 3kV

+

+

Ia 5A

Ig2 +

/- 2

00m

A

Ug2 1.1kV 0.1AUg1 180-210V 100mA Ua 7kV 4A

Ug2Ug1 Ua

stabilized voltage very hard voltage hard voltage

g2 p

rote

ctio

n if

+U

a f

aile

d

380V~

drive

antGU36B-1

+ Ig1 4

00m

A

Ug1 300V

+Ug2 1600V

+

Ua 10kV+

Uff 12V~

Air Temp 200 C

PWR 20kW SWR

3 x 250V~

01234567

Hour

3 x 60A~

Iff 200A~

8V~

QRO PA GU36B-1

Ua +7kV-Ug1

10E -

200W

-Ug1 +-

+Ua+Ug2

8 x

1N

5408

(7.5 - 8V)

C ptfe 3nF

TX 180V RX 230V

OUT

3x3

n3

6 x Φ 2.7/Fi 30-11t

Φ1.5/12 L70 31t

Φ1.5

/15 L

70 2

4t

Φ2.2/28 L60 11t

+12V

Φ2.5

/Φ10

0.5

t -

L60

C1

C2

G R

R

S

T

auto 40A

auto 40A

auto 40A

13

9

7

16

14

10

8

15

11

5

12

6

68E

68E

68E

R

S

T

D E

F

H Ua 7000V

0

6.3A

6.3A

4A

8V 130A

2x470p 15kV

1n 9

kV

Ug2 1

200V

3n3

-Ug1 -190V

3/10p (5)

10/25p

Ua 7

000V

DRIVE

0.2A

~

~TX +12V

Ug1

250mA

10k

2E2 2W

100E

180E

2n2

270k

100k

2n2

-Ug1

Ur

ANT

Ud Ur

PW

R ins

SW

R ins

24V s

tab

RX out

1 2 3 4 5

6 7 8 9 10

TX +

12V

RX +

12V

470E

470E

1n 3

kV

11 1169V12 1107V13 1046V19 984V14 923V20 861V

22 0

220V 21

1

0 17

2A A

B

C D R Q

P from opto Ua

N Ug2 1200V

11

1216

1513

141

218

17

220V 6

7

0 9

1A

14

1913

1812

1711

16

1 5V st

2 12V st

3 15V st

4 24V st

6 10V

7 18V

8 21V

9 31V

5

10

15

20

A +

18V

B C

D

2k24

7n

1A

1A

1

2

35

46

T

S

R

6.3A

1

2

35

46

92

91

9

10

1

3

2

4

91E5W

68E5W

1k5

1k

10n

1k8

1k

10n

O +31V

17p 3.5kV

0

1

2

35

46

a b

5u

1G2R2G3R3G4R4G5R5G

0. +12V phase det.

1. +12V stab.

4a. +30V from U G2 board

3a. Uff 8V~

3b. Uff GND

U + 30V

L5G

auto

10A

auto

10A

auto

10A

3n3

1n

10u

5u

4x120E 2W

+12V stab

6x3

n3+

6x1

n 3

kV

1n 3

kV

13

9

7

16

14

10

8

15

11

5

12

6

68E

68E

68E

1

3

2

4

13

9

7

16

14

10

8

15

11

5

12

6

68E

68E

68E

1

3

2

4

13

9

7

16

14

10

8

15

11

5

12

6

68E

68E

68E

1

3

2

4

CUaCUa CUa

CUa

4b. to CUa switch

2. -Ug1a

-Ug1a

1R

6G

6R

83000μ

5ZΑ

6ZΑ

+12V

ZV

0.4A

7 8 9 10

11

12

654L3L2L1

6SG6SR

6SO

6SI

S

SWR OFF

7

f

f

ACready

START

START.

SWR SET

3x220V~ 3x3050V~

Ia 5A Ua 10kV

36kWUa

60A

60A

60A

g1

Ig1 400mA

Ug1 300V

R 2

50V~

S 2

50V~

T 2

50V~

LPF

SWR

PWR

Coax RLY

PWRSWR

PWR 20kW SWR

LNA

+31V

+18V

BK

TX

K

+15V

g2

Ig2 +/-200mA Ug2 1600V

low voltages

ON OFF

Ua0 - 1 - 2

Air temp

temp 200 C

GU36-B1

tune load

hour

Ventilator

380V~

AB

Ua

0

R

T

S

R

R

0

R

R

0

R

S

T

t1

3x2.2+2.2+0.8A

phasedetector

A

B

14 13

10 9

6 5

2 1

15 16

11 12

7 8

3 4

R

S

T

R1 0

C R1 out

220V~

380V~

TX RXIff 200A~(4E 4mA)

(4E 4mA)Uff 12V~

12x1N4148

400z

Fi 0.4

2

0.8

W d

is

D

t2

1.1kW 2800 rpm

2100 r

pm

0.8

A

220V~

1.1kW 2800 rpm

t3

43mm H2O

48mm H2O

LED

kontr

ola

1.ON

2.G1

3. ff

4. Ua

5.READY

+12V

h

2100 rpm 0.8At4

braon

crna

plava

0

0

0

0

1

2

3

4

Ua switch

0 1 2

R

S

T

Ua ready

1

23

4

4 1

3 2

CW

193 V~

220V~211V

227V

Φ 0.4 Φ 0.32 3.81 t/V

240V~

208V~

0

13V

17V/11V

phase detector

6s.SWR reset

t2 ON

PHASE

QRO PA GU36B-1

G Rto

geth

er

b1 a

nd b

2 m

ake

76 m

m H

2O

acc

ros

the t

ube

togeth

er

b1 a

nd b

2 m

ake

5200 m

3/h

bla

nk,

and 9

85 m

3/h

acc

ros

the t

ube

1

2

3

4 5

1

2

3

4

5

6

1 C

A

2

3

1 C

A

2

3

1 C

A

2

3

B B B

R S T

HV1 HV2 HV3

20 t

1

2

A

A

B

B

2454V~

2758V~

2900V~

3260V~

5986V=

6727V=

7074V=

7952V=

0

RST ZV U~ U=PRIM SEC

* *

P = 36 kW

Ua transformer

UaRUaSUaT

10E 200W

500E

500E

750E

0.2E

100

W1n

1n

H Ua

3 x ZPY68 (0.2W dis)2x100k (0.4W dis)

F to start UG2

10n

6.3A

TLP627

A A1

E

R S T

R S T

B B1

C1 C

D

1n

B2

330E

1n

GND

3n3n

3n

100k

100k

.1

2 3

4

Ua 10kV

Ia 5A

60 x P600M60 x 1n 3kV

22x100k 5W (1.1W dis)

21 x

100

k 5W

(1.1

W d

is)

22 x 220u 400V

2 x

1N40

07

4 x

1N40

07

3 x

3050

V~

+7450Vpp

204V

60 x 470k 2W (0.3W dis)(338V/el)

1mA 95E 0.095V

19 x

470

k 2W

(0.3

7W d

is)

1mA 95E 0.095V

Ua

4011

3x3W 19V~R

S

T

TLP627

BZ5

4148

470E

10u

10k 10k

BC1771k

A4.7

k4.7

k4.7

k4.7

k

TLP627

BZ5

4148

470E

10u

10k 10k

BC1771k

B

1u

1u

5k6

5k6 1k

1k10k

10k

R1

0

2200u

12V

10u

10k10k

10k

BDX53C

100u

C R1 OUT

4007

4148

D

+12V

4k7

4k7

.11

2 3

4

.21

2 3

4

.

START

12

365

4

89

10

1312

11

12V

2V1V0

gre

en

red

220/16V~ 21V=

4x1N4007

Phase detector

GNDIN OUT

6n8

220u

385

V

-Ug1250mA

10k

2.2E 2W

180Ε

100E

2n2

270k

100k

2n2

6n8

05K

250

(320

/390

V)

1k 1k5

7xBZY93C24

2n2

1N40

07

BC107

10k

10k

2x1N5408

ZX13

3xBZY93C24

1N40

07

2n2

2x1N5408

100k

5W

-Ug1a

RL1

4 x 1N4007

Ug1

300

V

Ig1 400mA

RX 251VTX 185V

4 x 1N4007

296V

37E

1m

A 37

mV

4E 4mA 16mV

+12V stab

TX+12V

220V~ 227V

0

B

A

Ug1~

~

Ug1

8 x

100k

5W

(200

k 40

W)

8x1N

4007

2 x

0.22

E 2

W

1n

100E

1n

470k

470k

470k

500k10

x100

k 2W

8x47

0k

10x4

70u

200V

N250mA

240k

3n3

O +30V4k

7M

JE35

0

10k

2n2P F1 Ua opto F

1N4007A

B

Q

R

C

D

3n3

osc

S

UW

V

2xV

510

K20

560E

200mA

.

Ig2

+/- 2

00m

A35

E +

/- 1m

A 0.

035V

220V~ 21

0 17

20- 861V

22- 0V

Ug2

160

0V1k

7 20

0uA

0.34

V

g2 1200V

320E 90mA

Ug2

12x1

N54

08

from Ug2 A

to Ua B

3n3 3kV

g2 protection if +Ua failed

11

1216

1513

141

218

17

6

9

7

4xS5VB (6A)3x2200u 35V

2200u 50V

5V

12V

15V

24V

1u1u

1u1u

7

9

1 5V

2 12V

3 15V

4 24V

1N4007

1N41

48

6

8

14

19

13

18

12

17

11

16 5101520

10V

17.8V

21.3V

31.5V

8.3V~

13.9V~

16.5V~

24V~

4.5V~

220V~

0

Φ1.4

Φ1.4

Φ1.4

Φ1.4

Φ0.3

Low voltages

GNDIN OUT

GNDIN OUT

GNDIN OUT

GNDIN OUT

29nH 29nH75nH 75nH

24p

30p

24p

Chebyshev LPF, bandwidth 163 MHz, 50 Ohm

1.2mA 574E

1k

470E330Ω

220Ω

750Ω

2n2

560Ω

150Ω

47n

78L12

1u 1u+18V

47n

2k247n

0 - 200 C

0 deg

200 deg

A

B C D

Air temperature

GNDIN OUT

IN

100Ω

100Ω

1N57

11

1N57

11

OUT

Ud

Ur

10n

10n

4n7

4n7

SWR

PWR

PWR SWR

LM324 LM324

10k

2k5

100k

17k

1M

1M

100k 100k

4M7

22n47n

100k

100k

10k 10k

4n7 4n7

100k

Udir Uref

1k

100k 100k

100n

100n

1M

100n

22k

10u

47u

1M

10k

5k6

4n7 4n7

1k

470k

3n2 3n2 3n2

3n2 3n2

4n7

4n7

13

12

14

65 7910

8

2 31

11

4

13

12

14

65 7910

8

2 31

11

4

1mAPWR 20kW

2 x BC107

+24V

12V+24V

+24V

SWR COARSE

SWR

SW

R 1

mA

0V

24V

approx. 100Hz

0V

+24V

approx. 100Hz

0.56v (1.1V max)

+24V

to 6

SI

LED

cont.

PWR SWR

4x12E

4k7

22k

5x1N40075x10n

3xBDX53C3k3

22k

4k7

10k

10n

30V

10u

1u

390E 1

W

15V

1μ

1μ

1n

12V+18V

10n

1μ

1μ

47k

10k

10k

TX +12V

10n

47k

10k 10k

RX +12V

BD140

BD140

BC10710k

10k

BC107

22k

33k 4n7L5Z

BC17710k

470k

4n7

220μ

4.7

u

NE5554k7

100k

4n710u

1N4007

TX RXANT

33E 30V/12V 0.9/0.36A

TX

RX

15V 5

30E

1 2 3 4 5

LNA

+23V

BK

TXIN OUT

K

A

B

C

DE

F G

H

+30V

TX

RX600E 30/12V 50/20mA

I J

L

+15V

6 7 8 9 10

to 7

to 9

to 8

to 4

4. to BK3 (+15V on TX)

5. +30V

6. +18V

7. +15V for LNA

8. and 9. connecting on TX

to LED control 7

0.7Hz

0.7Hz

C RLY step

coax relay TX-RX control

Coax relay TX-RX control

T

T

1

2

3

4

5

6

1

2

3

4 5

GNDIN OUT

GNDIN OUT

T

CV

THR

DIS

V+

R

Q

TR

GND

T

-180V / -250V

to PWR SWRLM224 pin 1

phase det

ON +12V

G1

FF

Ua

SWR

+10V

0. +12V from phase detector

1. +12V stab

1R

2R

2G

10k 1G

1R

1G

10k

4R

4G

4R

4G

4a. +30V from U, G2 board

100k

68k

1u

1n

1n

1n

1n10μ

3R

10k

9 x

BC177

3G

3R

3G

3a. Uff 8V~

3b. Uff GND

100μ

1n

10k

3k3

2xB

C182

100k

100k

555 M

OS

10k 10n

47u

100u

910k

5G

5R

5R

5G

4068

100k

1k

1k

1k

1k

1k

1k

100k

100k

4007

4b. CUa switch

2G

2R

100k

1n

TLP627

2xMJE350

100k

5W

470k

2W

2. -Ug1a

5k

2k2

10k 6G

10k 6R

6R

6G

1k

1k

1k

1k

1k

1n

6ZA

5ZA

4μ7

2x1

N4006

KC

10k

10k

10k

10k

10k

100n

BC107

1μ

3n3

10κ

6SR

6SG

06

06

06

06 06

06

1k

1k

BT149D

150k

1n

10k

1k

1k

10k

1k

1k

BT149D

150k

1n

05

05

05

05

1k

1k

BT149D

150k

1n

02 02

02

02

02

02

1k

1k

BT149D

150k

1n

1k

1k

BT149D

150k

1n

10k

1k

1k

10k

1k

1k

BT149D

150k

1n

10k

1k

1k

10k

04

04

1μ

10κ

S

10κ

BDX54C

01

01

01

01

100k

100k

100k

100k

100k

100k

6SG

6SR

6SI

6SO

08

08

08

08 08

08

LM324

1M22k

1μ1n

22k

4k3

4k5

1μ

BC107

10κ

4n7

10κ

7

10κ

10κ 1μ

+12V

10V

+12V

+12V

G1

ON

Ua

ff

READY

4009

+12V

BC177

+12V

3x1N4007

+12V

Ua ready

10V

10V

10V

10V

+12V

SWR reset

10V

+12V

10V

10V

+12V

+10V

+12V

+12V

+12V

SWRreset

V-

V+

714

2

13

13459

101112

OK11

2 3

4 3 2

54

7 6

9 10 11 12

14 15

V-

V+

816

V+1

123

56

4

8910

12

13

11

3 2 5 4

7 6

9 10

11

12

14 15

V-

V+

816

V+1

4

53

6

12

10

911

8

1312

714

12

3

564

89

10

12

13

11

7 14

9101112131415161

2345678

3 2

5 4

7 6

9 10 11 12

14 15

V-

V+

816

V+1

13

12

14

6 579

108

23 1

11

4

2.5 min

to L5Z coax relay

to SET key

(QRV)

LED control

CV

TH

R

DISV+

RQTRGN

D

T

T

T

CP

D Q

R

S

Q

CP

D Q

R

S

Q

12

34

56

78

O P

E N

+12V

+12V10-26 Hz

speed

+12V

+12V +12V

+12V+12V

+12V

+12V

+12V

+12V from LED control

+12V

"QRV"

"I"

+12V

555

2μ2

100μ

4k7

10k

10n

25k

4017 4017

4013

3

3

3

3

100k

1μ

5ZА

10n

100k

100k

100k

100k

8

8

8

8

4068 100k IRF540

0.1Ω

5W

ZV

4017

1

11

1

6ZА

10n

100k

1μ

buzz

er

100k

100k

1μ

100k

22μ

1N40

07

1 23

56 4

89 10

121311

714

12 3

56 4

89 10

1213 11

714

2

13

13459

101112

V-V

+7

14

12 3

564

8910

1213 11

714

reset

resetreset

start

start

run

QRV CW tone signal

CV

THR

DISV+

RQTRGN

D

V+

O7

O2 GN

D

O5

O1

O0

O6

O3

MR

CP

0

CP

1

O5-

9

O9

O4

O8

V+

O7

O2 GN

D

O5

O1

O0

O6

O3

MR

CP

0

CP

1

O5-

9

O9

O4

O8

V+

GN

D

Q Q

CP C

PR D S

Q Q R D S

V+

O7

O2 GN

D

O5

O1

O0

O6

O3

MR

CP

0

CP

1

O5-

9

O9

O4

O8

Генераторные лампы ГУ-36Б1

Модель: Генераторные лампы ГУ-36Б1

Цена: 60 500 р.

Поверка: 2 800 р.

Наличие: на складе

Генераторные лампы ГУ-36Б1

Генераторные лампы ГУ-365Б1, ГУ-36-1: Мощный генераторный тетрод для работы в качестве генератора колебаний и широкополосного усиления высокой частоты на частотах до 250 МГц в телевизионных передатчиках. Генераторные лампы ГУ-36Б1, ГУ-36Б-1: Оформление - металлостеклянное, с наружным анодом и кольцевыми выводами 2-й сетки и катода. Рабочее положение - вертикальное. Охлаждение - принудительное: анода - воздушное не менее 400 мЧч; ножки - воздушное не менее 100 м/ч; баллона - воздушное не менее 60 мч. Масса 2,5 кг.

Генераторные лампы ГУ-36Б1, ГУ-36Б-1: генераторный тетрод - с оксидным катодом косвенного

накала и воздушным охлаждением анода и ножки.

Для проверки электрических параметров генераторных ламп ГУ-23А, ГУ-36Б-1, ГУ-66А, ГУ-68А, ГУ-88А используют мегаомметр, номиналом не менее 2500 Вольт.

ГУ-36б-1. Масса 11кг.

Обозначение вывода Наименование

А Кольцевой вывод анода

С1 Кольцевой вывод сетки первой

С2 Кольцевой вывод сетки второй

КП Кольцевой вывод катода и подогревателя

П Вывод подогревателя

Лампа ГУ-36Б1 содержит:

палладий – 163,02 мг;

золото – 753,01 мг;

платина – 4,75 мг;

серебро – 2125,2 мг.

Основные параметры

при Uн=8,3 В, Uа=2 кВ, Uc2=750 В, Iа=4 А

Ток накала 120 ± 5 А

Напряжение 1-й сетки отрицательное (при Uа=7 кВ, Uс2=1,2 кВ, Iа=0,3 А)

£ 220 В

Ток эмиссии катода (при Uа=400 В) ³30 А

Ток анода (при Uc1=0) ³ 4 А

Крутизна характеристики 83 ± 13 мА/В

(85 ± 10 для ГУ-36Б)

Коэффициент усиления 1-й сетки относительно 2-й сетки (при Uс2=500 и 750

В) 10 ± 3

Колебательная мощность (на частоте 250 МГц и полосе 8 МГц) ³ 10 кВт

Междуэлектродные емкости, пФ:

входная 150

выходная £24 (23 для ГУ-36Б)

проходная 0,6

Долговечность ³ 2000 (1000 для ГУ36Б) ч

Предельные эксплуатационные данные

Напряжение накала на частотах до 50 МГц 8,3 В

Напряжение накала на частотах свыше 50 МГц 8 В

Ток накала пусковой 210 А

Напряжение анода на частотах 100 - 250 МГц 7 кВ

Напряжение анода на частотах до 100 МГц 8 кВ

Напряжение 2-й сетки 1,1 к В (1,25 для ГУ-36Б)

Напряжение 1-й сетки отрицательное 400 В

Мощность, рассеиваемая анодом 15 кВт (14 для ГУ-36Б)

Мощность, рассеиваемая 2-й сеткой 300 Вт

Мощность, рассеиваемая 1-й сеткой 150 Вт

Рабочая частота 250 МГц

Температура анода 250 С

Температура ножки и спаев керамики с металлом 175 С

Рабочая температура окружающей среды до 60 С

LY1DQ ham radio resources LY1DQ@mrtv.lt

Created by LY3NML

at up to 50 MHz 8.3 at above 50 MHz 8.0

Filament starting current, A 210

Anode voltage (DC), kV: at up to 100 MHz 8 at 100-250 MHz 7 Grid 2 voltage (DC), V 1100

anode 15.103

grid 1 150

grid 2 300

Operating frequency, MHz 250

Temperature, °C: anode 250

TETRODE GU-36B-1

The GU-36B-1 power tetrode is used for wide-band power amplification at frequencies up to 250 MHz in

stationary general-purpose RF equipment.

GENERAL

Cathode: directly heated, carbonized thoriated tungsten.

Envelope: metal-ceramic with ring leads.

Cooling: forced air.

Height: at most 300 mm.

Diameter: at most 184 mm.

Mass: at most 11 kg.

OPERATING ENVIRONMENTAL CONDITIONS

Ambient temperature, °C -10 to +55

Relative humidity at up to +25 °C, % 98

BASIC DATA Electrical Parameters

Filament voltage (AC or DC), V 8.3

Filament current, A 110-130

Mutual conductance (at anode voltage 2 kV,

grid 2 voltage 750 V, anode currents 4 and 6 A), mA/V, at least 70-96

Gain coefficient (at anode voltage 2 kV, grid 2 voltages

750 and 500 V, anode current 4 A) 7-13

Anode current (at anode voltage 2 kV, grid 2

voltage 9000 V) A, at least 5

Negative cutoff voltage (at anode voltage 7 kV, grid 2

voltage 1200 V, anode current 0.3 A), absolute value, V, at most 220

Interelectrode capacitance, pF:

input, at most 155

output, at most 24

transfer, at most 0.8

Output power (at frequencies up to 250 MHz, anode voltage

at least 6 kV, grid 2 voltage 900 V, bandwidth 8 MHz), kW, at least 10

Limit Operating Values

Filament voltage (AC or DC), V:

CONNECTION OF

ELECTRODES WITH LEADS

Negative grid 1 voltage (instantaneous value), absolute value, V 400

Dissipation, W:

stem and ceramic-to-metal seals 175

LY1DQ ham radio resources LY1DQ@mrtv.lt

Created by LY3NML

Averaged Anode-Grid Characteristic Curves:

U1 = 8.3 V, Ug2 = 1.2 kV

Averaged Grid 1 Characteristic Curves:

U1 = 8.3 V, Ug2 = 1.2 kV

Averaged Grid 2 Characteristic Curves:

U1 = 8.3 V, Ug2 = 1.2 kV