[HBR] Yet Another HB Receiver Project
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[email protected]
Sun, 31 Aug 2003 16:55:15 -0400
Eddy Swynar wrote:
> It's an 11-tube 1929-style superhet, as was inspired by TJ Lindsay's
> piece in the Antique Wireless Association's OLD TIMER'S BULLETIN of
> about a year ago...there ARE differences, however.
Very cool project, not to say challenging, with the availability of parts
being as it is. I'd certainly like to hear how it goes and see some
pictures. What are you using for a chassis?
As for the filaments, I'd think some of the AM boys would have a
good size 5 VAC CT transformer squirrelled away somewhere --
some of the serious 'heavy iron' tubes have 5V filaments. 17 amps
... wow ... But that's a 5V 10A CT transformer -- I think that's not all
that rare an item.
Commercial receivers of that vintage most often used separate power
supplies, did they not?
My (much easier!) 10 tube project is going well -- the audio stages
are working. Detector next, possibly today. That and the AGC are
the last of the messy (many components per stage) work. Both are
plate detectors.
There will be an Electric Radio article on either this or the HBR2K
project -- maybe both. I enjoyed writing for ER, but life got so busy
for a while there that there was no way to add writing and still have
time for any radio activity to write about!
Walt
KJ4KV