NIB Brand New Pair UTC P-1 Transformers Audiophiles MC MM MIC Input Phono StepUp

Description

Up for sale is one pair of Brand New in the Box (NIB) UTC P-1 Professional P series MC/MM Step Up / Mic / Input transformers in octal plug-in base.
I have
carefully
matched Each Pair with the Signal Generator and an oscilloscope. These are the best MC/MM transformers available without breaking your bank!
I have 3 Pairs for sale but the Buy It Now Price is for One Pair (Qty 2) of P-1 Transformers Only.
The pictures show that I have 3 pairs plus a single one (Qty 7) but the price is for One pair (Qty 2).
I am showing the pictures of 7 transformers because I want the buyers to see all are new units with original boxes. The original boxes look crisp and clean. They have been stored in a dry SoCAL home for more than 50 years!
Each P-1 is in the original box wrapped in the original Kraft paper from UTC since made in the 60s. Each UTC P-1 dons a very attractive looking UTC P-1 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. Then, it is checked again on the impedance analyzer for the open / short turns on both the primary and secondary winding. I have recorded the test results before packaging them back in the original UTC boxes.
I don't use ohmmeter or digital multi-meter to measure the DC resistance on the coils since the DC current from ohmmeter could temporarily magnetize the transformer core and can arguably effect the sound of these input transformers. Of course, you should not use ohmmeter on them as any knowledge T/T guy would NOT too.
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. You can't find a better made MC MM transformer than this for this given size!
"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 low impedance of 50Ohm or 200/250/300Ohm or 500/600Ohm impedance but no permissible DC allowed.
Secondary has 50KOhm (50,000) impedance which is ideal for MC / MM step-up use.
Of course, they were made here in the Good Old U.S.A!
They will be packed well double boxed for 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!