I'm talking to a guy on eBay who can get the replacement MOSFETS for the Hafler DH-500 and P-500, but he needs a minimum order of 20 pairs to order for me. The amp uses 8 pairs, so if a couple of people need them, we can get them. They are $30.00 per pair and that is matched..
The original Hitachi devices were 2SK176 and 2SJ56 and the replacements (I think) are BUZ 901 and BUZ906..They appear to have been used successfully in a bunch of Haflers. He has the devices for DH-200 and P-220 amps, but orders these from England and will have to pay VAT, shipping, and then match them when they arrive.
If anyone has another source for these, please let me know! And if there is any interest, let me know..
The original Hitachi devices were 2SK176 and 2SJ56 and the replacements (I think) are BUZ 901 and BUZ906..They appear to have been used successfully in a bunch of Haflers. He has the devices for DH-200 and P-220 amps, but orders these from England and will have to pay VAT, shipping, and then match them when they arrive.
If anyone has another source for these, please let me know! And if there is any interest, let me know..