Bob's Devices Cinemag 3440A (Red trafos) moving coil step up transformer in perfect condition. Read all of the reccomendations for this unit on the Vinyl Asylum here or in other places online.
Works very well with many popular LOMC cartridges including, but not limited to: the Denon 103 series, Ortofon SPU types, Shelter, Dynavector, etc.
Works flawlessly, cosmetically perfect. From what I can gather from Bob's current offerings, it would appear that he now charges $650 for the same unit (though, there may have been some small changes or slight upgrade to warrant this. Not sure what they would be though).
I don't really need the unit as I now have a new phono stage with built in SUTs that I slightly prefer. I am only interested in re-couping what I just spent (Purchased new by me in August 2011).
I will be adding a couple of pics in a day or so.
Offer for US buyers only and buyer pays for shipping (shouldn't be much as the unit is quite light). Paypal is okay, but please plan to add 4%. I would greatly prefer a money order, certified check or personal check.
Thanks for looking!
Below is some description from the Bob's Devices page:
Switchable for 1:16 (24 dB gain) or 1:30 (30 dB gain).
Into a standard 47k phono preamp, the effective input impedance of the low gain (1:16 ratio) is 184 ohms. At 1:30, the effective input impedance is 52 ohms.
Note: The 150 Ohm tap and the 37.5 ohm taps are specified by the manufacturer to provide 1:18 and 1:36.5, however 1:16 and 1:30 was measured using a 50 ohm audio signal generator at 1kHz with a 47k output resistance, which approximates the real situation of a moving coil cartridge load using this transformer into a standard RIAA preamplifier.
OPTIONS: If you prefer a different range, these transformers can optionally be built to be switchable between 1:16 and 1:9 . Additional options are also available.
CONSTRUCTION TECHNIQUES: All connections are Resistance soldered using the American Beauty system which avoids heat damage to the delicate insulation on the hair-like wires of the transformers. Test equipment is very low current to avoid saturating the transformer cores. You can count on a premier product that is state-of-the-art.