Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => AmpTools/Tech Tips => Topic started by: punkykatt on April 07, 2010, 08:42:41 pm

Title: 9 pin bias probe for EL 84`s
Post by: punkykatt on April 07, 2010, 08:42:41 pm

 



I made up a couple of 9 pin bias probes just to see if could be done. I used the 9 pin socket savers from AES. You can take them apart( bolt and nut holds them together) and remove the pins.  I had to double stack them, they are a bit tall. Work great for EL84 combo amps. For heads there might not be enough clearance.  Punky
   

 
 
 SOCKET SAVER, 9 PIN MINIATURE

P-ST9-900

9 pin miniature socket saver.

RoHS Compliant 




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Title: Re: 9 pin bias probe for EL 84`s
Post by: Maschinenmann on April 08, 2010, 05:58:04 pm

Nice! What was your total investment?

Title: Re: 9 pin bias probe for EL 84`s
Post by: punkykatt on April 08, 2010, 09:16:55 pm

Probably $20 for the both. For wire I used some small speaker wire I had sitting around, the banana plugs I got at RS years ago.  Fun little project for a rainy afternoon.
Punky

Title: Re: 9 pin bias probe for EL 84`s
Post by: HotBluePlates on April 10, 2010, 08:09:05 am

Very nice work!!

Title: Re: 9 pin bias probe for EL 84`s
Post by: punkykatt on April 10, 2010, 09:42:11 am

Thank you.