Carver M4.0t
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Product
Site
Price
Listed
eBay
Carver Silver Seven Tube Amplifier, M-4.0t Amp Advertisement 1986, 2 pg
$9
Apr 24, 2024
$9
Apr 24, 2024
eBay
Carver M4.0t, TFM-45 Review, 3 pgs, 1985, Full Test Tube Sound Info
$9
Apr 23, 2024
$9
Apr 23, 2024
eBay
Carver M-4.0t TFM-4.0 -42 -45 Magnetic Field Power Amplifiers Service Manual
$18
Mar 1, 2024
$18
Mar 1, 2024
eBay
Carver Amplifier M4.0t Completely Recapped And Performance Tested
$1,225
Feb 19, 2024
$1,225
Feb 19, 2024
eBay
CARVER MODEL M 4.0t Grey Faceplate.
$85
Feb 7, 2024
$85
Feb 7, 2024
eBay
Carver M-4.0t Faceplate with Handles, Spacers & Hardware!
$100
Jan 28, 2024
$100
Jan 28, 2024
eBay
Carver M-4.0t TFM-4.0 -42 -45 Magnetic Field Power Amplifier Amp Service Manual
$29
Jan 24, 2024
$29
Jan 24, 2024
eBay
Carver M4.0t/TFM-42/TFM45 Capacitor Kit
$79
Oct 29, 2023
$79
Oct 29, 2023
eBay
Carver M-4.0T amplifier rebuild restoration recap service kit repair capacitor
$95
Aug 17, 2023
$95
Aug 17, 2023
eBay
Carver M4.0t TFM-42 TFM-45 Amplifier 9000uf 125v capacitors (Pair)
$19
Nov 27, 2022
$19
Nov 27, 2022
eBay
CARVER M-1.0t, M-1.5t, & M-4.0t 3900uf, 160V High Rail Capacitors for HRC-1A Kit
$9
Sep 3, 2022
$9
Sep 3, 2022
eBay
Carver Capacitor Array Assembly M-4.0t TFM-4.0 TFM-42 TFM-45
$95
May 22, 2022
$95
May 22, 2022
eBay
Increased Value 130V Capacitors to repair upgrade CARVER M-4.0 TFM-4.0 TFM-42/45
$119
Dec 16, 2021
$119
Dec 16, 2021
eBay
Carver M-4.0t Amplifier Owners Manual
$21
Dec 16, 2021
$21
Dec 16, 2021
eBay
35/80V Power Supply Capacitors to Repair / Refurbish CARVER M-4.0T TFM-42 TFM-45
$32
Dec 15, 2021
$32
Dec 15, 2021
eBay
CARVER M-4.0t, PM-4.0, TFM-42, & TFM-45 130 V Capacitor replacement Kit
$26
Dec 15, 2021
$26
Dec 15, 2021
Resources
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Discuss Carver M4.0t
I am trying to repair an M4.0T. all the amp transistors are good;
By Bobalew, 8. July 2020, 00:07.
the power supplies seem to be good, but the Led's cycle Up & down, while the transformer hums in the beginning of the Cycle, and I see that the Overload LED, is immediately illuminated upon power up.. I see 1/2 of 120 volts at the output of the SCR, so I'm beginning to suspect that. The power supply caps on the high rail have been replaced, and the +/- 30 and +/- 60 Volt supplies & caps have tested good. Any hints as to what is going Wrong? Do I have a faulty overload detector?
By maximus, 21. September 2020, 13:09.
Well, personally I would team up with a tech that know more than myself. The amp is quite old and a new set of transistor may be hard to come by. So, I would hand the thing over before they die in an accident of my own making.
The alternative is to work through the amp from one end and try to protect the output transistors while you do. Sometimes the fault really lies in the protection circuit itself, but if you are not certain then you may cause further problems if you tinker with it.
The alternative is to work through the amp from one end and try to protect the output transistors while you do. Sometimes the fault really lies in the protection circuit itself, but if you are not certain then you may cause further problems if you tinker with it.
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