On Fri, 06 Mar 2009 09:04:58 -0600, SX-25 wrote:

I've got a receiver that has no identifiable markings and I wonder if
anyone can assist me in learning what it is?

The receiver can be viewed at

http://img.villagephotos.com/imageview.aspx?i=24536290

It is 10-inches wide, 8-inches deep and 8-inches high.

It contains two tubes and I presume it to be a regenerative. The
two
tubes are a 6J5 and a 6J7. Since the receiver has such
a cloak of mystery surrounding it, I have no way of knowing if
those
were original tubes or substitutions. The 6J5 may
very well have been a substitute for an original 6C5. The 6J7 may
have
been a substitute for a 6W7.

At first I believed the receiver to be a derivation of either a
National SW series or possible a homebrew Frank Jones regen. However
the die cut of the cabinet and extrusions are too professional to
be a
homebrew nor does the wiring job underneath suggest a factory
made unit.

The two pointer knobs were on the receiver when I bought it
although,
to me anyway...they look too modern for the rest of
the vintage of the receiver. Band is selected with a plug in coil.
The
coil that was included was homebrewed and without marking.

The style, circuit and tube choice suggests a vintage of very late
1920s or 1930s era.

If any of you have any ideas or guesses I would welcome them.
Thanks.

WA9VLK

No markings, the cabinet's way bigger than the chassis, the chassis
doesn't match up all the way to the hole in the cabinet, the coil's
homebrew.

I'd say it's a reasonably well built home-brewed receiver in a commercial
cabinet. Those particular tubes have been available since the late
'30's, so there's no reason for them not to be original. Who knows about
the chicken-head knobs -- the original owner may have put them on,
someone may have bought it second hand sans knobs or felt that the
original builder's knobs were ugly, etc.

--
http://www.wescottdesign.com