(pair of) SILVER-7 TUBE AMPs
Joined: Sun Jan 14, 2007 11:53 am
Location: TN Native Languishing in VA
Sent: Thursday, March 1, 2012 4:20 PM
Subject: Re: Need help with CarverFest amplifiers, Please!!
Hi Gary, wow, trouble in river city!
First thing is get some good output tubes. The Electro Harmonix are great and have a nice high voltage rating.
Then replace the DC restorer 1n4148 diodes with 1n4004 units. Replace the 15 volt zener with two 5 watt units hooked in parallel. Amp should work then. As for blowing fuses immediately, check the power supply diodes for a short. Use a simple VTVM and just measure them in-circuit. If one shows a dead short, replace it. As for the hum unit, it sounds as if the AC line is somehow connected wrong. Just inspect it careful and I'm sure you will find the problem just by looking hard with your eyeballs. Be careful, because right now I think you may have a severe shock hazard on your hands with this amp until you find the trouble.
If all else fails, send them to me. I'll fix 'em right up!
From FrankieD's lips to your ears: Sunfire: a quiet box of endless power.
Sunfire TG-IV/400~7 Amp
Carver SD/A-360 CDP
Active bi-amp: Ashly XR-1001 & 2 Rane PEQ-15s
Main: HotRodded AL-IIIs
Sub: Klipsch RT-12d
Center: Sunfire CRS-3c
Surround: Sunfire CRS-3 (x 2)
OconeeOrange wrote:"Gary likes to play it 'loud' as do I. His system begs you turn it up until you die"
RIP WIlliam B. Dibble, 1948-2012. I'll miss you my friend.