L2

VC1 VC2

C2 C3

L3

VC3 VC4

C4 C5

L4

VC5 VC6

C6 C7

R

11

C

6

8 4

T

13

C

4

T

8

R

9

R

11

R

6

J4

D5 1

C

13

C

4

T

8

RL5 16

T

9

R

11

R

6

D4 1

C

13

C

4

J3

RL4 16

T

9

8

T

11

J2

D3 1

R

6

R

13

RL3 16

C

4

C

R

R

9

8

L1 C1

D2 1

C

C T

11

J1

RL2 16

T

9 13 INPUT

D1 1

T

RL1 16

T

100nF

6

J5

L5

VC7 VC8

C8 C9

VC9 VC10

C10

+24 V

C11

VC11 VC12

VC13 VC14

VC15 VC16

L9 C16 C17

VC17 VC18

R C

11

8 4

T

13

6

C

4

T

8

R

9

R

R

J9

D10 1

C

11

C

13

6

RL10 16

T

4

T

R

R

9

8

L8 C14 C15

D9 1

C

11

C

13

6

J8

RL9 16

T

4

L7 C12 C13

9

8

T

J7

D8 1

R

11

R

13

6

RL8 16

C

4

C

R

R

9

8

L6

D7 1

C

C T

11

J6

RL7 16

T

9 13 OUTPUT

D6 1

T

RL6 16

T

100nF

6

J10

L10 C18 C19

VC19 VC20

C20

AT OUTPUT TO CATHODE, DONT FORGET DC BLOCKING CAPACITOR ~22 nF ~250 V MINI (ABLE TO PASS ~2 RF AMPS) A SIMPLE 10 POSITIONS ROTARY SWITCH 0.1 AMP (COMMON AT SUPPLY GROUND) IS ENOUGH TO SELECT BANDS BAND SELECTION CAN ALSO BE MADE BY N CHANNEL MOSFETS DRIVEN BY ANY µPROCESSOR (BAND DECODER) ALL TOROIDS & COILS NB OF TURNS TO BE CHECKED FOR MAX TEMPERATURE RISE AT FREQUENCY OF USE ALL SELECTED FIXED VALUE CAPACITORS TO BE CHECKED FOR AVAILABLE CURRENT AT FREQUENCY OF USE

FOR SINGLE GS-35b VALUES (200 W INPUT MAX), SEE FILE: GS-35b_Cathode_Circuit_Z33_Excel.pdf

10 BANDS CATHODE INPUT CIRCUIT FOR TRIODE LINEAR AMPLIFIER

DOC N°: AMATEUR RADIO BY: [email protected] DATE: 23/05/17

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