[Lafayette] Fw: HA-800B

[manualman at juno.com]

Answers in your text preceded by "***"
Pete, wa2cwa

----- Forwarded Message -----
From: Ron via Lafayette <lafayette at mailman.qth.net>
To: lafayette at mailman.qth.net,
lafayetteradiocollectorsclub at yahoogroups.com
Date: Sun, 21 Sep 2014 17:52:38 -0400
Subject: [Lafayette] HA-800B
Message-ID: <8D1A3FD7ECE1753-2EC4-1475C at webmail-m159.sysops.aol.com>

I was wondering if anyone out there that owns one of these old girls
would care to correspond.
I have several HA-600s, and a regular HA-800 and now two 800Bs. The most
recent one has been through cosmetic restoration and it needs an
alignment. It's pretty far off frequency.
Once on the bench, I'm going to check the caps with one of my ESR meters,
calibrate the 100 KHz marker and do the alignment.

Anyone been through the alignment, especially "T1"?
This had me confused for a while, since it is:
1. never shown on the layout diagram
2. none of the boards are marked


*** HA-800 Series - That's correct. They never showed where T1 were
located nor did they show where TR-1, FET2, FET2, and FET3 were located
either. There's also several omissions on the schematic drawing including
two wires coming from the remote socket that go no where. They actually
connect across the secondary of the 500 ohm audio transformer.


The rest should be pretty easy.
Coupla things I wanted to mention: I replaced the line cord with a modern
3 wire job. I wanted to add either a BNC or Coax connector to the
chassis. Boy, there is just a lack of space.
Lastly, what is up with the 'plate' covering what appears to be a 12 VDC
connector in the back of the chassis?


*** The receiver can run on 12 volts DC or 110 volt AC. However, if you
run it on 110 volt AC, DC voltage will appear on the pins of the 12 volt
socket. The plate is kept in place over the socket opening to prevent
accidental shorting of the pins when operating it with 110 volt AC.
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