[ARC5] GRC-9 BC34 Solid State

[DaveJ]

Dennis:

 

These aren’t original from me so I can’t speak to specifics.  They were in various QEX/QST/73 magazine articles I’ve accumulated over the years- senior moment (the brain has deteriorated since I retired from Agilent/Keysight!).  I believe the original intent was to run them on 12/24 volts instead of 250V.

 

The August 1997 QEX has an article, Synthesizing Vacuum Tubes,  by W2GOM/7 on solid state tube replacements that can be of considerable use in the quest for VT replacements, specifically the 6SK7 and 6SL7.

 

sincerely,

 

 

Dave J, WA4OBJ

 

From: Dennis Monticelli [mailto:dennis.monticelli at gmail.com] 
Sent: Tuesday, December 18, 2018 8:38 PM
To: DaveJ
Cc: ARC-5 Maillist; Jay Coward; David Stinson; radios at sbcglobal.net; Robertisselhard at gmail.com
Subject: Re: GRC-9 BC34 Solid State

 

Got them, thanks. 

 

I admit I am confused.  These are simple circuits.  That's OK.  What doesn't appear to be OK is the use of 30V JFETs.  You could not use a standard supply with these tube replacements.

 

Dennis AE6C

 

On Tue, Dec 18, 2018 at 8:31 PM DaveJ <cjack93907 at charter.net> wrote:

All:

I've attached the jpeg files for the solid state replacements.  There are a
total of 16 files and I expect they will be deleted by the various spam
filters so I sent them to individuals as well. (Jay, David S, Wayne, Robert
and Dennis) 

Let me know if you did or did not get them so I can follow up.

Dave, WA4OBJ

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