On Mar 6, 7:04*am, "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

Check all the screws and nuts used in the device. If they are all
identical in size, length, thread, and the nuts are all identical,
then chances are it is a commercial unit, but made by a small company.
Varying nuts and screws are sure sign of home brew!

KD7HB