Fluke 117c multimeter and euro bias probes for bias adjustment …
2023年10月28日 · Fluke 117c multimeter and euro bias probes for bias adjustment on fender and marshall tube amps
That Didn’t Go As Planned | Marshall Amp Forum
2023年8月23日 · Purchased a set of replacement tubes for my Plexi clone and a bias probe to use with my multimeter. I biased my DSL40C so had a good idea what I was doing. I installed all the new tubes and turned on the amp and to get an idea of how it sounded with the new tubes even before i attempted to adjust the bias. Well, the amp roared like never before!
Fluke yea! - Marshall Amp Forum
2022年2月16日 · The Fluke was $180 used. Apparently Fluke does not advertise this, but warrants and calibrates the USA made multi meters for free, and for life! I did not know this until I began researching used meters. I almost opted for their $100 entry level meter that …
Jcm 2000 bias problem - Marshall Amp Forum
2023年6月10日 · No idea which country you're in but the Fluke 77 series 2 is very nice. Fluke 77 series II DVM Multimeter Voltmeter with rubber housing and leads. | eBay Find many great new & used options and get the best deals for Fluke 77 series II DVM Multimeter Voltmeter with rubber housing and leads. at the best online prices at eBay!
Measuring Wattage? - Marshall Amp Forum
2021年2月22日 · OK, I've got a scope, good Fluke MM, signal generator and a 100 watt dummy load! What do I do next to measure the wattage of various amps? I'm assuming (there's that nasty word) that I hook it all up, dummy load on the speaker out, signal generator sine wave to the input jack at about 1 volt, scope probe and multimeter on the secondary of the ...
Bias Question, accuracy of device used | Marshall Amp Forum
2022年5月4日 · Obviously a Fluke (there are other good quality DVMs available) can be taken as within 1%. A four digit display will be more accurate. The millivot reading across the cathode load resistor doesnot need to be super accurate, +- 10% is fine.
Plate/cathode Voltages, Plate Bypass Cap (schematic + Values) …
2016年5月28日 · I have problem with R3 (D) because my multimeter shows only 106 ohms of resistance. Although color code says it's 36k resistor. Although color code says it's 36k resistor. Does it mean that resistor is dead and that's why I have such a high plate voltage and cathode voltage (4.02V) ?
6100 LE / EL 34 Capacitors | Page 2 | Marshall Amp Forum
2023年2月5日 · I here is what I have on pin 3 measured with the Fluke multimeter. 16 ohm speaker load. Only measured on V8 and V9 V8 = 443 VDC V9 = 446 VDC Adjusted Bias to 38,5 ma / 25w tubes. ON STANDBY , there is a plate voltage of 75 VDC on both V8 and V9.
Laney Cub Head 15w problem | Marshall Amp Forum
2015年10月8日 · B- When measuring the plate voltage of V5 (second el84) at pin 7 everything is normal at 285v but when i raise the volume past 8 it remains the same, but the current in the bias probe drops from 28 to almost nothing and sometimes infinite symbol appears on the multimeter
female-female coupler for speaker cables? - Marshall Amp Forum
2023年10月7日 · Fluke 117c multimeter and euro bias probes for bias adjustment on fender and marshall tube amps ...
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