The heater is almost certainly for the log element in the FB loop. The
temp. stability is needed to stabilize the thing.
-John
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All discreet transistors and a few IC's ...Nice little power supply
...must be highly accurate as it has a "heater" (A5 Board) recommends
20-30 minute warm up. Converts AC/DC -IN to LOG out 80dB dynamic range,
auxiliary scope monitor . Hook two of them in series get LOG-LOG out
I'll send you a private email with scan of the description page.
Nice case for a project box
Dave & Lynn Henderson
ArtekMedia
Out-of-Print Technical Manuals
www.ArtekMedia.com
manuals@...
651-269-4265
David C. Partridge wrote:
Pending anyone turning up a manual for these, what are these good for
and
for that matter are they worth anything?
On another tack - are there any interesting things inside them (there
looks
to be an ovenised "something" in there)?
Cheers
Dave Partridge
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