EhSmith Posted February 9, 2020 Share Posted February 9, 2020 I’ve inherited an amp, mic, and an old Kay mandolin with pickup: I understand that the “220951” code on the speaker rim means Jensen, year 9 (likely 1959?), week 51. As for the other code on it, “ST 744 F12S C5069”, ST 744 may be a model number, and F12S means Field coil, 12”, Standard series? No Gibson model # visible anywhere on the case or the Amp itself. There’s a plate on the mic - THE ASTATIC CORP, Conneaut Ohio, model DN-HZ, number B341855. The pickup says De Armond, Rowe Industries, Toledo. A friend told me there’s a distinction between magnetic vs. acoustic pickup, but I don’t know which this is. Mostly, I’d like to get a model number & specs for the Amp, in order to try to research what it might be worth. Quote Link to comment Share on other sites More sharing options...
Cam in alberta Posted February 13, 2020 Share Posted February 13, 2020 that amp is older than 59 that style was from 40's maybe very early 50's Quote Link to comment Share on other sites More sharing options...
jdgm Posted February 13, 2020 Share Posted February 13, 2020 (edited) Ref; Astatic mic - https://www.radiomuseum.org/dsp_hersteller_detail.cfm?company_id=5550 There are also some Astatic mics on ebay, should give you an idea of price. The DeArmond is interesting too as it seems to be specifically for mandolin. Someone will definitely want that! As for the amp, the speaker looks far too new to be the original. It is something like these ones on ebay, though the number of tubes is different. https://www.ebay.com/c/17005187287 https://www.ebay.com/itm/Vintage-1930s-Gibson-EH-125-All-Tube-Lap-Steel-Guitar-Combo-Amp-amplifier/352645544259?_trkparms=aid%3D1110001%26algo%3DSPLICE.SIM%26ao%3D1%26asc%3D20190606144518%26meid%3Dffde5507f55d48819d03933e87aa152b%26pid%3D101072%26rk%3D1%26rkt%3D12%26sd%3D192903491078%26itm%3D352645544259%26pmt%3D0%26noa%3D1%26pg%3D2546172&_trksid=p2546172.c101072.m2109 And this amp, sold on Reverb, has the right number of tubes and a very good description - think this is the same as yours? Note what they say about the speaker - 10" or 12" - which could help you with dating it. https://reverb.com/item/3357212-gibson-eh-125-1941-brown Good luck! Edited February 13, 2020 by jdgm Quote Link to comment Share on other sites More sharing options...
badbluesplayer Posted February 17, 2020 Share Posted February 17, 2020 (edited) The amp looks like an EH-125, an alternate version , with three inputs and 5 tubes, like the schematic here. Not sure about the date, prob early? 40's. Note on schematic says 1943? EH-125's seem to be selling for up to $1000 or more. Does it have the back cover? The speaker model would be F12S, with the S being the designator for the magnet size. Edited February 17, 2020 by badbluesplayer Quote Link to comment Share on other sites More sharing options...
Bill Moore Posted February 19, 2020 Share Posted February 19, 2020 Isn't is interesting that the amp has no volume control for instrument? I assume the knob on the pickup is a volume. In the early days, one would play your instrument and sing through the same amp. (We did it in the 60's before PA's were common!) Quote Link to comment Share on other sites More sharing options...
EhSmith Posted February 21, 2020 Author Share Posted February 21, 2020 Hello everyone - thanks for the replies & info! Yes, I do have the back cover (that's what the mic is sitting on in the picture above). Quote Link to comment Share on other sites More sharing options...
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