Up for sale is one pair of Brand New in the Box UTC P-10 (Professional P series) push pull tube output transformers in octal plug-in base. I have 7 pairs available for sale.

I have carefully tested and matched Each Pair with the Signal Generator and an oscilloscope.

Each P-10 is in the original box wrapped in the original Kraft paper from UTC since made in the 60s.

Each UTC P-10 comes with the UTC P-10 metal badge on the top as seen in the pictures.

Each transformer is carefully tested with the AC Source using a function generator and an oscilloscope.

These are High Fidelity transformers with very wide bandwidth from 30Hz-20KHz according to the UTC data printed on the boxes.

UTC Data from 1970 UTC Catalog quoted the frequency response is within +1dB and -1dB for the quoted 30Hz-20KHz.

"P" series units are identical to the UTC Ouncer units but are sealed in bakelite housings with plug-in base to fit in the standard octal socket.  While of submersion proof design, these units weight but two ounces.  Oversize pins in the base make it impossible to dislodge these units from their sockets.

Size 1 3/32 diameter, 1 15/32 height, standard octal socket, 2 oz unpacked.

Primary has 30K ohm impedance center tapped with NO Unbalanced DC in the primary.

Secondary has 500/600 ohm and 150ohm output impedance for tube line output.

Of course, they were made here in the Good Old U.S.A!

They will be packed well for safe shipping. 

Please NOTE THAT all of these transformers are Brand NEW NOS BUT IT IS SOLD AS-IS DUE TO AGE.

Return is NOT Accepted Due to the nature of the Vintage Item.

I only sell the good parts and want to make sure you get the good parts.

They will be packed well for safe shipping.

I will ship them Internationally with USPS Priority Mail Insured.

Please ask any questions you have before purchasing them! Happy Listening!