#61
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I think SMDs would lead to a smaller package, and then you could epoxy dip it for an authentic look. And better reliability.
My only question is, can they take any voltage spikes on them? This might be an issue. (Don't forget startup, before the tubes are conducting...) What are you using for the PCB design, btw? If there was enough demand, you could get them made by a PCB place and stuffed and all. With the plethora of places overseas, this is surprisingly cheap now... |
#62
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On K7 the junction of the 560 pf and 3300 pf needs to connect to pin 2.
I wish the schematics were drawn easier to follow, more nearly like your layout. |
#63
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Quote:
jr |
#64
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Wow, I missed that there was a connection there! Thanks.
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#65
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I made the PCB's today. Basically I use the Press-N-Peel method. Or another name is Toner Transfer. I run the sheet through my laser printer set on 1200dpi and the iron on the pattern on a clean, really clean copper side of the board. Peel off the sheet, then etch, drill, and trim to size.
Here are the boards with the toner transferred to the copper. Last edited by Crist Rigott; 09-23-2018 at 09:13 AM. |
Audiokarma |
#66
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Here they are. Ready to encapsulate. Can you find the 82pf 200V cap?
Last edited by Crist Rigott; 09-23-2018 at 09:13 AM. |
#67
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Nice work!
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#68
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Thanks Tim.
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#69
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Very neat. Would you bother to encapsulate them? They look very nice as is. Other than authenticity I can't see a reason to. In the (admittedly highly unlikely) event of a component failure you can replace a component if left unencapsulated.
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#70
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Very nice!
Out of curiosity, where is K8 located in the set? I don't remember seeing it when I did mine a few weeks ago. jr |
Audiokarma |
#71
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Yeah, I thought of leaving them as they are. But then encapsulated them.
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#72
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Quote:
Last edited by Crist Rigott; 07-04-2017 at 12:58 PM. |
#73
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Slaps forehead!
I remember unsoldering a "ceramic cap" when I pulled the chassis... since I generally leave ceramic caps alone, I paid no attention to it. jr |
#74
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I thought that might have been the case.
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#75
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Audiokarma |
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