OT: Substitute Transformer?

[G. Beat]

Paul -

Some suggestions:

1.  Many of the Hammerlund Manuals and Schematics are available on BAMA
http://bama.sbc.edu/hammarlund.htm

2.  Contact Rich KB8TAD at: "Put_His_Ham_Call_Here" @Bigfoot.com
regarding his restorations (which included building a power supply for his 200 series restoration).  I especially liked his usage of the Molex connector for ease of power supply disconnection from receiver - HOWEVER check the manufacturer's voltage rating of any modular connector like this (Tyco/AMP, Molex/Cinch/Jones).

http://oak.cats.ohiou.edu/~postr/bapix/SP210bk.htm

http://oak.cats.ohiou.edu/~postr/bapix/SP200var.htm

http://oak.cats.ohiou.edu/~postr/bapix/BC_779A.htm

3. You might be able to use Mike Bryce's HP-23R replacement PC board (The Heathkit Shop) with a suitable transformer - for a nice small foot print.
[Hey, justifies the post on the Heath reflector :-) ]
http://www.theheathkitshop.com/hp23r.html

4. If you are looking got a transformer -- there are a number of companies that may have a suitable replacement (or can build to spec)

Greg
w9gb



> Hi Folks,
> Slightly off topic, but I am having a hard time locating a Power Supply for
> a Hammarlund Super Pro (series 200) receiver. I've decided to homebrew a
> power supply for it if I can't locate one soon. But I cant't find out what
> model transformer was used and what voltage-current ratings are needed for
> the high voltage winding. There are 2 separate low voltage windings: 5v for
> the 5Z3 HV rectifier, 6.3v for the receiver tubes, and 5v(?) off a tap from
> the high voltage winding for the 80 rectifier tube supplying grid bias for
> the set. I don't know the current requirements for these as well. Any help
> you can give me would be appreciated. I know that AES has a number of
> transformers that might work if I knew the correct requirements. Thanks for
> your help!
> 73
> Paul
>
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