George Cortez Jr <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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Thanks for the reply, Garey
I did check it and it seemed ok.
I did replace C9 a 27pf cap on the output of the xfmr because it was
damaged when I removed T14.
I put it all back together and now I see output. It gets down to the
mixer and then gets weak.
It never does make it to the driver tube. I may need to swap the mixer
or driver tube and I have them on
order. This is a first trouble shooting with Drake equipment and using
the o scope. It makes
things a lot easier.
Thanks
George Cortez
NE2I
Garey Barrell wrote:
Garey Barrell <[EMAIL PROTECTED]> made an utterance to the
drakelist gang
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George -
Unless the coil is physically damaged, the problem might be with the
diodes. They have a penchant for shorting to the can, or may just be
blown. They are germanium 1N270s, but can be replaced with Schottky
1N5711 or other modern diode. They really don't need matching because
the modern diodes are so much more uniform in manufacture. If you
have a DMM with a Diode Test function, you can select four with
similar forward junction voltages.
73, Garey - K4OAH
Glen Allen, VA
Drake 2-B, 4-B, C-Line & TR-4/C Service Supplement CDs
<www.k4oah.com>
George Cortez Jr wrote:
George Cortez Jr <[EMAIL PROTECTED]> made an utterance to the
drakelist gang
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Hi all
Does anyone have a T14 from a junker T4X?
Thanks
George NE2I
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