The 4 transformers (2 out & 2 power) come out of a prof constructed stereo (double mono) amp with tubes as mentioned in #1. This amp was already mentioned by a member Zatizati in 2020-02-29 (Artec 225D, mine is 225A). No problem I 'll make the amp Steve Morley showed as mono...
Toroidaloutput trannys are now being used in some tube amps. In the past, toroidal trannys were x 2 more expensive than EI trannys because of the high cost of toroidal winding machines. Today, labour is expensive by comparison to the cost of a toroidal winding machine. Many transformer windin...
Speakers with transformers (electrostats) often react unpredictably. Alas there is no 'control' over the speaker and a low DF vs super low DF does not matter at all. Here's why: The speaker is a mechanical device. You apply a voltage and it takes time for the speaker to get...
George Patrick Shultz, in Transformers and Motors, 1989 1 Who provided the first reliable source of electrical power? What was this source? 2 Who first noticed the relationship between magnetic electric current and magnetic fields? 3 Who received the first patent for an electrical motor in the ...
The amplifier is designed to support a global voltage range, making it suitable for use across different regions. Its robust construction, weighing in at 10KG, ensures durability and stability, while the gold-plated terminals and Japanese Z11/M6 grade EI transformers provide a premium audio ...
The plan was to get +/-15v out of the circuit using the LM2588 with the feedback resistors set for 15v, then post-regulate that output with a 7812/7912 pair and good filtering to keep any ripple out of there. I'm still a bit flaky on winding my own transformers. Read a few pa...
It could be a nice opportunity to get into winding your own transformers as well Nice, less than 200 uV noise and ripple looks good. There is even an application example in the datasheet for 5V to +/-12V, but not enough power. But I guess I can do lots of things wrong designing ...
Look for audio matching transformers however most I have seen are high -> Low impedance like 600 Ohms to 4 or 8 Ohms. The transformers also have poor frequency response and I think a better quality small 4 Ohm speaker + microphone would be better in terms of sound quality. However...
The two designs differ by the values of their matching impedance, the load impedance, and the ratio turns of the transformers. All these differences are reflected in the higher peak current and thus, the higher maximum power dissipa- tion in the output of the driver. 20Ω +12V 1/2 OPA...
HDSL2 Upstream Driver The two designs differ by the values of the matching im- pedance, the load impedance, and the ratio turns of the transformers. All of these differences are reflected in the higher peak current and thus, the higher maximum power dissipation in the output of the driver....