Jeff recently launched EASTĪmplification, and he can be reached easy to understand Gibson's reticence to enter the mid-price acoustic game with a Gibson-branded guitar. I hope that helps clear up your tube-consumingīudda Amplification. “inrush current limiting” device in the circuit.
Tech look into installing a thermistor or Standby switch in your amp, I’d have your Rectifier version of a reissue amp sound andįeel more like the original model with its May actually be there to help the solid-state Is engaged, but there will also be a voltageĭrop across the resistor that would increaseĪ bit under higher volume situations. Models that used solid-state rectifier circuits. Rectifier, but I’ve only seen these on reissue Ω resistors were added on the output of the Years I’ve seen schematics where 22 Ω or 47 These models, but I could not find any schematic Were later added to the standby switch on Type, which are directly heated and supply Note this is not true when using other similar Will be at operating temperature prior to Without using the standby switch, the tubes Normally I would say this is not a good idea, but in this instance it’s probablyĭesigned with an “indirectly heated cathode.”Īpproximately as long (or possibly longer byĭesign) as the other tubes in the circuit to The real reason your amp is behaving itself.Īnd now let’s explore your tech’s suggestion Stop using the standby switch, it could be You began experiencing no failure with theīetter with a particular amp design. To prematurely weaken but not necessarilyįail, and that is if the amp is left in the standbyīeen using one particular brand of output That can theoretically cause output tubes Of major concern here, there is one phenomenon WhyĪlthough I do not believe this is an issue What is most likely causing the rectifier Specification of a 5AR4 tube, I don’t believeĮither. Setting of the “smoothing” switch, but since Much filtering was placed on the immediateĪC30 CC2, the capacitance of the filter circuit Of its capability, which could happen if too Generally a rectifier tube willįail if there is demand for current in excess Standby switch was causing damage to your Reach operating temperature when power isĪpplied to the amp, but before high voltage While this will not initially cause a tube toįail or malfunction, over time it will reduceĪddition of a standby feature lets the tubes
Solid-state rectifier is used, as they will generateīefore a typical vacuum tube can heat up. Rectifier with a directly heated cathode or a Tube reaches its operational temperature, a Prior to applying high voltage to its internal Operation of a tube, theoretically it should Player instant access to the amp’s performance On tube guitar amplifiers, not to give the Technician has given you some sound advice.Ī standby switch was included as a feature Let’s take a look at why a standby switch
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