[time-nuts] schematics for a HP117a please

[Max Robinson]

Well, I didn't get a manual with my receiver and I've never had it apart.  I 
was just assuming that it used standard newvistors.  Assuming is always a 
dangerous thing to do.

Regards.

Max.  K 4 O D S.

Email: max at maxsmusicplace.com

Transistor site http://www.funwithtransistors.net
Vacuum tube site: http://www.funwithtubes.net
Music site: http://www.maxsmusicplace.com

To subscribe to the fun with transistors group send an email to.
funwithtransistors-subscribe at yahoogroups.com

To subscribe to the fun with tubes group send an email to,
funwithtubes-subscribe at yahoogroups.com

----- Original Message ----- 
From: "J. Forster" <jfor at quik.com>
To: "Discussion of precise time and frequency measurement" 
<time-nuts at febo.com>
Sent: Sunday, May 02, 2010 2:52 PM
Subject: Re: [time-nuts] schematics for a HP117a please


> Hi Max,
>
> Are you sure the main unit uses 6CW4s? It's been 20+ years since I last
> had my unit apart, but I thought the 60 KHz amp in the main chassis used
> Nuvistors with either grid or plate caps, something I'd never seen before.
> I also remember the Nuvistors were numbered something like 7xxx.
>
> I don't have the manual to hand at the moment to check. Sorry.
>
> FWIW,
>
> -John
>
> ==================
>
>
>
>> http://www.tubesandmore.com/
>>
>> Has the 13CW4s for the loop antenna and 6CW4/6DS4s for the receiver.
>>
>> Regards.
>>
>> Max.  K 4 O D S.
>>
>> Email: max at maxsmusicplace.com
>>
>> Transistor site http://www.funwithtransistors.net
>> Vacuum tube site: http://www.funwithtubes.net
>> Music site: http://www.maxsmusicplace.com
>
>
>
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to 
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>