se output transformer

I'm using an oversized stack of audio grade 29M6 laminations and bobbin wound construction. It's a 2x1 interleaved winding with two input impedences and three output impedences. You can readily run this as a 2500 or 3500 Ohm input to 2/4/8 Ohms output if you need to operate at lower impedences.

5000 or 7500 ohm (5K or 7.5K 120ma). They call the 5-7.5K a secondary, but you can use this backwards with single ended triodes.

I'm using an oversized 7/8 x 1" stack of audio grade 29M6 laminations and bobbin wound construction. It's a 2x1 interleaved winding with two input impedences and three output impedences. This is the standard OT10SE USA, except mounted into Bahr's VC-87 vertical end bells for a fully shielded construction.

I'm using an oversized 7/8 x 1" stack of audio grade 29M6 laminations and bobbin wound construction. It's a 2x1 interleaved winding with two input impedences and three output impedences. This is the standard OT10SE USA, except mounted into Bahr's HC-87 upright horizontal end bells for a fully shielded construction.

PULLED FROM A RECEIVER THAT USED A SINGLE 6V6GT OUTPUT TUBE. 8 OHM SECONDARY. IT IS IN EXCELLENT CONDITION. CLOTH COVERED PRIMARY LEADS. STAND UP CHASSIS MOUNT UNIT. STANDS 1 5/8" OFF CHASSIS. CORE IS 1/2" THICK.

I have a B&K 747 tube tester. This is a mutual conductance tester. I also use a Tektronix curve tracer for testing triodes. I give a number of evaluations for tubes. The lines show how the tube conducts throughout that range.

Tested, and working well.

They’re pulled, in good condition (tested).

For the 300B, etc KB tubes, etc, and other audio power output tubes. Bandwidth,-1db 18hz to25khz ( ear function).

Please inspect pictures before purchasing. All sales are final. No returns.

Potted in Aluminum case as in the photo. Output 3-5W for 2A3 tube. I have used the unpotted version in my DIY 2A3 single ended amp project a few years ago, and liked the rich tuned, detailed and undistorted sound very much.

They're pulled from RCA RS-176 Amplifier ( the Stereo Orthophonic High Fidelity) ,in good condition (tested).

16K to 8ohm, for the tube GM70. 845.211. The frequency responce of the whole amp. GM70 (100mA DC current) and with 1watt output power is 7,5Hz- 30kHz -3dB (the secondary coil is grounded through the resistor 12Kohm).

Secondary 4, 8, & 16 ohm. 15 watt SE. upgrade to 125A35A, 125A3A, 022905.

The type is PW303662.1. Tube side foir EL 84 SE. Coil 1: ca 680 Ohm with middle tab at ca 630 Ohm.

The type is WT510960. addition coil : 0,8 Ohm.

For DIY applications like SE tube amplifier. Made in USSR (Russia). Suitable for 6V6, EL84, 6BQ5, EL82, 6GV8, ECL85, SV83. No any warranty! You bay what you see.

One set of this AMCC cores weight 2.7kg ( 4x C cores). This type of iron core have very high efficiency which keep most music details and transient response. You will like it. You can get more information on Hitachi Powerlite.

Size is important factor, if you would like hearing low non-distortional bass from your tube amp. These are capable transfer power more close to low end of musical diapason. Potential tube plate current up to 130 mA; nominal current 80mA;.

One set of this AMCC cores weight 2.7kg ( 4x C cores). This type of iron core have very high efficiency which keep most music details and transient response. You will like it. You can get more information on Hitachi Powerlite.