mcintech
Responses from mcintech
| Why aren't new vacuum tubes as good as old ones? Note all the later model cars running around with burnt out lamps (not LED's, a different story altogether regarding solder joints and high temp LED's), and yet I bet there are 1958 Chevy's with original bulbs all around the car. I never replace t... | |
| ATMA SPHERE SCHEMATIC for a UV-1 M/M....... As the current service department for Nagra, and former service tech for dCS, Musical Fidelity, NAD, Arcam McIntosh Labs and several others, I guarantee that none of those companies ever allowed schematics to be distributed to customers or non-aut... | |
| A "primer" on soldering... Always heat all surfaces to be soldered to the point that THEY melt the solder. A proper solder joint will be smooth and shiny (leaded solder) or smooth and dull (lead-free) NEVER pitted.If the solder bubbles and pits, turn down the iron's temp.If... | |
| Repair Service For Gallo Sub Amp? Contact Gallo direct; they went way out of their way to help me repair a client's sub about a year ago. Sent me the entire amp board mounted on the rear panel, all I had to do was attach the wires and good to go. | |
| Most Beautiful Receiver / Integrated - Ever was... ? Absolutely concur on the MAC 1900. Sublime 55W punching way above that weight class, and if one replaces the bias resistors, unit runs cool as a cucumber.Best FM I ever heard with Nashville's classical radio station 91.1. | |
| Frozen McIntosh MX135 😰 Hi,Former Authorized McIntosh tech, there is a service bulletin regarding the MX-135: locking up replace an IC in the front panel: IC20. Should be able to get the repair at your dealer.Hope this helps | |
| Non-transferable warranties? Many higher end brands will not transfer the warranty. In fact, many will not even cover warranty service if you didn't buy from Authorized Dealer within their territory (US customer buys from Asia for example and new buyer needs unit changed to U... | |
| 12AT nos , flash at start ? Perfectly normal in a Nagra preamp. (Full disclosure; am US service center for Nagra) | |
| Tube Troubleshooting Old school method of repairing rush-afflicted and iffy tubes:Suspend the tube upside down, and thoroughly heat up all the pins with a soldering iron (say 10 seconds per pin), if solder runs out of the end of the pin, stop as you've gotten it. (mos... | |
| schematic for musical fidelity kwdm25 dac. I have what you need, (former Musical Fidelity service).Email me at themacsmith@bellsouth.netSteve GeorgeNashville | |
| Amp Recommendations for Magnepan MMG Speakers My ancient but wonderful Maggie SMGa's are a match made in heaven with my Musical Fidelity A300 (265W into 4 ohms).Still, with that much reserve power I often wonder if it's overkill (I never set volume above 10:00 o'clock as it's just too much fo... | |
| ARCAM AVR300 - beware I have to agree with Akg ca: we cannot lump ARCAM into unreliable status over a series of receivers. The AVR250-350 units were built immediately after the EU enacted RoHS standards in 2006. eliminating lead from solder, from which a great many pro... | |
| When to recap? Former McIntosh repair tech, here.Another clue; swollen tops of the electrolytics (can-type caps), and look for any dark liquid seepage from around the bases of the capacitors (some mfrs like NAD used a dark glue to help secure the cans, not McInt... | |
| Mcintosh xrt28 exploded view/diagram/servicemanual Thomas,I have the XRT-28 Service Manual on PDF. Please send an email to me at themacsmith (at) bellsouth dot net, and I'll send it.Yes, it has an exploded view as well as parts layouts and schematics for the crossovers.Steve | |
| Question about shipping damage As a former US Service manager for two EU HiFi Brands, we American employees were astonished by the feedback from EU every time we requested heavier, better packing for our multi-thousand dollar amps. Our amps were constantly damaged in shipping i... |