We have ready built and tested (includes plastic box) variable output EHT supplies available. Output can be varied from 1.5kv to over 8kv. Output is negative polarity. Requires a DC supply from 3
to 12 volts. 65 x 75 x 25 (W x L x H) AUD $95.00 DIY Kit
for the non-regulated supply above. Provides a regulated DC output ranging from <3 volts to > 12 volts.Ready built and tested. (one only reqd) AUD $48.70
Note, the above regulator is supplied on a printed circuit board and is ready to use. It may need to be enclosed in a suitable box depending upon the speaker design.
DIY Kit Form
1:150 Bass transformer. Used to drive the bass section of our highly regarded Acorn electrostatic loudspeaker.
Power handling is conservatively set at 150 watts with short term peaks exceeding 350 watts.
Frequency response is flat from 20 Hz to 2kHz. driving most typical loads.
Silicone steel core, weight 5kg
Our standard full range audio transformer is a grain oriented silicone steel, multi-sectioned design, with excellent frequency and square wave response. Turns ratio is 1:90, power
handling conservatively set at 150 watts continuous and 500 watts impulse. (<200 ms). Weight 4.5Kg
Response is < + or – 2dB, 20Hz to
20kHz driving a 1.2 nf load. A 0.6 ohm resistor is used in series with the primary to quell a rising response which peaks at 25 kHz. (resonance). This resistor may be varied to adjust the response for different panel
1:100 Treble transformer. Used in the midrange / treble section of our Acorn electrostatic loudspeaker.
Power handling is set at 150 watts with short term peaks of over 250 watts. Frequency response is flat from 150Hz to 20kHz depending on load.
1:88 small panel transformer. As used in the mini panels for bookshelf speakers.
Frequency range 240 to 20kHz (depending on load).
Weight 0.4 kg
Fine Audiophile Equipment
Designers and Manufacturers of Electrostatic Loudspeakers and Fine
E R Audio Pty Ltd. ACN: 120 797 775, ABN 48 120 797 775