rodman99999

Responses from rodman99999

Phase Linear 700 & 400 series II
Working in Orlando, FL; It seemed like we had one to rebuild every other week(lots of discos, Naval Base clubs, live music venues, college students, etc. in that area). Of course, there were a number of other brand amps in for repair also, as we d... 
vacuum tube shelf life
If one buys tubes that do not measure in the, "NEW" range, on a calibrated tester, but were described as, "NOS," either the seller didn't know what they were selling, or they lied. I've bought almost a hundred tubes, off eBay(some from Germany, Au... 
Phase Linear 700 & 400 series II
BTW: That was not just a personal opinion: ie: (http://forums.stevehoffman.tv/threads/old-phase-linear-equipment.140038/) (http://www.audioheritage.org/vbulletin/showthread.php?25317-Phase-Linear-700) 
Phase Linear 700 & 400 series II
"Rarely smoked?" The electronic repair industry nicknamed them, "FLAME LINEARS." 
What Are your impressions?
Click on the second link that I listed, for a source of Walker's products. Or- go direct to the source: (https://walkeraudio.com/) 
What Are your impressions?
From Walker's instruction sheet: HOW TO APPLY E-SST/SST: 1) Whether you are putting it on audio and video equipment or something else, the same rules apply. It is best to clean the connections with a contact cleaner that leaves no residue. If the ... 
What Are your impressions?
Walker SST(or E-SST) is NOT a cleaner. It is a contact enhancer. It is intended to be applied after your contact points have been cleaned, with some other product. Another, very similar product, that I've had excellent results with: (http://www.qu... 
When to recap?
I should have qualified my statements by mentioning that your caps, in those 40 years, have gone through a combination of those two dynamics. In other words; what would be considered, "time in service" and "shelf life", assuming that the amp was n... 
When to recap?
The McIntosh tech's statement was a ploy, to get you to bring the amp to his facility. Electrolytic capacitor manufacturers, in their data sheets, will specify an expected lifespan(in hours) for their capacitors(during use), at a certain temperatu... 
Customer Service
A rarity, now days- KUDOS! 
power cables - not in the signal path?
You may find this treatise interesting: (http://amasci.com/miscon/whatis.html) 
power cables - not in the signal path?
I've found power supply mods to make major audible improvements in whatever audio device applied(tubed, SS, analog, digital, all of my own and quite a few happy customers), for a few decades. The new breed of PCs and fuses have seemed to me, the i... 
Speed Control
Interesting points, under subheading #5, here: (http://tf.nist.gov/timefreq/general/pdf/2125.pdf) How they accomplish it? A decent analogy, in the third post, here: (http://boards.straightdope.com/sdmb/showthread.php?t=446800) 
DBX 10-20 Computer Analyzer EQ needs repair
Try this: (http://dbxpro.com/en-US/support) 
Hafler XL600 Vs Hafler 9505 Much difference?
Mr C- You're welcome. Happy listening!