tindle@ms.uky.edu (Ken Tindle) (11/10/89)
>Has anyone ever built one of the amplifier kits from >Mark V Electronics, Inc. ?? >I am interested particularly in the 120 watt Mosfet Power >Mono Amplifier, model number TA-477. If anyone has had any >experience with the Mark V amplifier kits, please post your >opinions on how they sound and the quality of their designs. I'll throw in my two cents on this... I just finished a TA-300 30W mono amp, and am not especially happy, or unhappy. Mark V is not like a Heathkit- I would recommend knowing something about electronic design before tackling one. Now, this is not bad because their prices are very good IF you DO know something about design. The TA-300 kit I got had an etch error on the pc board, and they were running a filter cap rated for 50V at 50.3V. That's a no-no- one needs to derate for good, reliable operation. Their designs are not first-rate, but are acceptable if you don't have "golden ears". --------------------------\ /------------------------------------------ INTERNET:tindle@ms.uky.edu | "I heard you." -Kirk BITNET:tindle@ukma.bitnet | "He simply could not believe his ears." Ken Tindle - Lexington, KY | -Spock, The Trouble With Tribbles --------------------------/ \------------------------------------------
peg@psuecl.bitnet (11/13/89)
In article <13195@s.ms.uky.edu>, tindle@ms.uky.edu (Ken Tindle) writes: >>I am interested particularly in the 120 watt Mosfet Power >>Mono Amplifier, model number TA-477. If anyone has had any > I haven't tried Mark V kits, but I highly recommend Dick Smith's MOSFET amp kit. It is based on a project in the July 1985 issue of Australian Electronics magazine. The quality of the parts seems quite high, the instructions are a reprint of the article (which is pretty clear), and the price was right ( $40 for 100W MOSFET kit a while back). I am very pleased with the amp's performance. I have two mono kits in a rack mount and often lend it out for parties. The amp runs cool without a fan, has never shut down, and sounds nice... Total cost with case was $150, although I got the power supply parts at a great price surplus. Try contacting Dick Smith Electronics and see if they still have the kit. I don't have an address: they moved and I have not relocated them. I think they advertise in the back of Radio-Electronics. Best of luck, Paul