Mulja tv repair portal

Equipment Repairs => DVD/VIDEO/Home Cinemas/Hi-Fi/Mp3/Camcorder => Topic started by: Turnip on August 07, 2014,13:25:17

Title: Akai AA-R20 - Mains Tx S/C
Post by: Turnip on August 07, 2014,13:25:17
Hi folks,

Have one of these in, with a S/C transformer primary.

Chap wants it done for some odd reasons, also wants to pay serious money.

Need a 28-0-28 plus a side winding of 7.5 volts.

Noted a 30-0-30 Toroidal on the Flea at a decent price - will advise on success or otherwise - Chris.

Later - Toroid and 7v5 trannies fitted, and set works. Only doubt being that the 30v toroid gives secondary voltages of + and - 45v and the output transistors are max 100v giving headroom of 10v. Hope he doesn't go for max volume as will prob have to sort something better than 2SB686 and 2SD716