VINTAGE RECORDING AMPLIFIER TRANSFORMERS A to K

Recording quality output transformer designed for this excellent amplifier originally used by the Beatles at Abbey Road. The design is based on the original but with our enhancements. Ratio 7:1+1. 10K/200+200 ohms. Normally used with secondary windings in parallel to give a +18 dBu at 20 Hz but may be series connected for +26 dBu at 20 Hz. Very large 50% Mumetal 50% M6 core for high output level, ultra low distortion and exceptional dynamic range. Mumetal can. Colour coded leads. Bandwidth 10 Hz to 50 kH. Can size 45 mm dia x 52.5 mm high mounting grommet (type 9980E) or 2 x M3 holes (type 9980I . Tested with Drip Electronics "Four Seven" PCB.

Ratio 1:6 300/10k Ohms. Suitable for Series 3 and possibly other models. Mumetal can 34 dia. x 24 high with colour coded leads.

Ratio 1:10 with tap for 1:1 Max input level +9dBu. Sowter designed transformer replacement for the original Lustraphone transformer. Internal electrostatic shield to ensure good common mode noise rejection. Mumetal can 34 mm diameter with package options.

Fully shrouded with colour coded leads.Size "J". WW Primary 120,110 V Twin winding. Electrostatic screen.
250-0-250 at 60 mA. 6.3 V CT @ 1.5 A. 6.3-5-0 V @ 1.0 A for rectifier and pilot light. Generously designed mains transformer with low loss M6 core will power 1 or 2 channels. 50/60 Hz
Larger than original but still fits on chassis with minor modification

Ratio 1:2 CT. Max input level +20 dBu. Sowter designed transformer similar to Triad HS-29. (1:2CT configuration only) Internal electrostatic shield to ensure good comon mode rejection for accurate phase splitting at high frequencies. Mumetal can with colour coded leads. Mounting options. Tested with Drip EPQ1A (9330E choose threaded grommet type ).

Ratio 10CT:1+1 4% NFB. Max output level +23 dBu. Total dc resistance 40 ohms ref secondary. Can be configured for 600 or 150 ohm secondary. 50% Mumetal core for exceptional bandwidth. Colour coded leads.

Ratio 10CT:1+1 4% NFB. Max output level +23 dBu. Total dc resistance 40 ohms ref secondary. Can be configured for 600 or 150 ohm secondary. 50% Mumetal core for exceptional bandwidth. Mumetal can with threaded grommet.
Tested with Drip EPQ1A (9530E)

For replacement or recreation of this rare reverb unit. Interfaces between the plate and amplifier. Ratio 1:35. Mumetal core in Mumetal can 26 mm dia x 20 mm high with colour coded leads.

Ratio 9:1. Sowter designed transformer similar to Neumann U1 with a single secondary winding. Internal electrostatic shield to ensure good common mode rejection. Mumetal can with colour coded leads 34 mm dia. x 24 high.