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  #61  
Old 07-01-2017, 08:23 AM
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nasadowsk nasadowsk is offline
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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...
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  #62  
Old 07-01-2017, 02:05 PM
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Notimetolooz Notimetolooz is offline
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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.
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  #63  
Old 07-01-2017, 05:31 PM
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jr_tech jr_tech is offline
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Quote:
Originally Posted by Notimetolooz View Post
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.
Good catch! I missed that one on my first look. Like the way the distributec R/c was done in k4.

jr
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  #64  
Old 07-01-2017, 07:14 PM
Crist Rigott Crist Rigott is offline
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Quote:
Originally Posted by Notimetolooz View Post
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.
Wow, I missed that there was a connection there! Thanks.
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  #65  
Old 07-02-2017, 09:52 PM
Crist Rigott Crist Rigott is offline
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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.
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  #66  
Old 07-03-2017, 01:30 AM
Crist Rigott Crist Rigott is offline
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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.
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  #67  
Old 07-03-2017, 11:47 AM
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Notimetolooz Notimetolooz is offline
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Nice work!
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  #68  
Old 07-03-2017, 01:54 PM
Crist Rigott Crist Rigott is offline
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Thanks Tim.
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  #69  
Old 07-03-2017, 07:44 PM
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irext irext is offline
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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  
Old 07-04-2017, 11:24 AM
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jr_tech jr_tech is offline
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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
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  #71  
Old 07-04-2017, 12:51 PM
Crist Rigott Crist Rigott is offline
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Originally Posted by irext View Post
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.
Yeah, I thought of leaving them as they are. But then encapsulated them.
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  #72  
Old 07-04-2017, 12:53 PM
Crist Rigott Crist Rigott is offline
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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
Thanks. K8 is located on the top of the main chassis. It goes between the main and CRT chassis. Looks a lot like a ceramic disc capacitor.


Last edited by Crist Rigott; 07-04-2017 at 12:58 PM.
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  #73  
Old 07-04-2017, 01:07 PM
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jr_tech jr_tech is offline
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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
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  #74  
Old 07-04-2017, 01:37 PM
Crist Rigott Crist Rigott is offline
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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
I thought that might have been the case.
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  #75  
Old 07-04-2017, 02:15 PM
Crist Rigott Crist Rigott is offline
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Ready to solder in!



The paint I used.

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