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Velleman-Kit K8020 Illustrated Assembly Manual page 12

High-end valve control amplifier

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Construction
12. Valve socket mounting
V...
7
8
5
q V1: B9A
q V2: B9A
The valve socket is mounted on top of the allready mounted PCB pins.
• First position the socket over the pins and solder one lead.
• Check the hight of opprox. 23mm (0.9")
13. Push button
Mount them straight against
the PCB surface !
q SW1: TS-04PV
q SW2: TS-04PV
q SW3: TS-04PV
q SW4: TS-04PV
q SW5: TS-04PV
Remark: The metal part of these but-
tons are used as jump wire.
Be sure not to test or use the unit
without soldering these push buttons.
12
6
1
2
3
4
9
14. Capacitors
q C16: 2,2uF( 2u2, 225 )
q C17: 2,2uF( 2u2, 225 )
q C18: 68nF/630V (0.068, 683)
q C19: 68nF/630V (0.068, 683)
q C20: 22nF/630V (0.022, 223)
q C21: 4,7uF/160-250V( 4u7)
q C22: 4,7uF/160-250V( 4u7)
C...

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