[TechAssist] Re: X-Reference For Old Germanium XSTR / KLH Amp
- From: "George" <grndmstrg@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sun, 15 Feb 2004 02:32:51 -0800
Bob, that's old! Used them in my early transistor projects, Never used the
hotter CK721 as they were a bit more expensive. whoops did I let the cat
out of the bag?
George
Afana Electronics
Moreno Valley, CA
----- Original Message -----
From: <woodman1@xxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, February 14, 2004 4:35 PM
Subject: [TechAssist] Re: X-Reference For Old Germanium XSTR / KLH Amp
> Jeff,
> I have some very old ECG books in basement of shop, not that im old
or anything.. will look monday for you.. But I do remember the CK722 Raython
transistors..Hmmm thats when transistors were born....
>
> Bob
>
> Bob's TV
>
> Worcester, ma
>
> -----Original Message-----
> From: Peter oliver <oliver_peter1@xxxxxxxxxxx>
> Sent: Feb 14, 2004 5:22 PM
> To: techassist@xxxxxxxxxxxxx
> Subject: [TechAssist] Re: X-Reference For Old Germanium XSTR / KLH Amp
>
> Ge transistors were usually pretty leaky, (you might say they barely work
to
> begin with). Rebuilt one 5 or 6 years ago. Seem to rember the schematic
> being pasted to the bottom of the unit. units usually need most of the
> output and stage coupling caps replaced. Replacement of the transistors
> probabbly best to measuse the volatge of the circuit and make
determination
> from there, most of the time circuits designed for Ge transitors weren't
> that particular. A very old copy of NTE or ECG might list values.
>
> Peter Oliver
> Tucson Radio TV
>
>
> From: "Shoreline Electronics" <jstielau@xxxxxxxx>
> Reply-To: techassist@xxxxxxxxxxxxx
> To: "Tech Assist" <techassist@xxxxxxxxxxxxx>
> Subject: [TechAssist] X-Reference For Old Germanium XSTR / KLH Amp
> Date: Sat, 14 Feb 2004 16:50:37 -0500
>
>
> Make : KLH
> Model : Model TWENTY
> Part : Transistor on pre-driver module. Numbers on it are : 36789 RCA
>
> Definitely germanium type. PNP
>
> Not listed in NTE or ECG.
>
> Anyone have a reference for a replacement.
>
> Schematic of this model?
> =================================
> Jeff Stielau
> Shoreline Electronics Repair
> 344 East Main Street
> Clinton,CT 06413
> (860)399-1861
> (860)664-3535 FAX
> jstielau@xxxxxxxx
> =================================
>
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