When power is dialled down, the supply voltage will rise. They mount on individual PCBs to make wire connections easy. The SV2 uses small, non-critical pots, allowing easy placement of these components on a crowded front panel. Using DriveComp and Power Scale together maintains a given tone, while setting them differently provides four different operating modes for the amp. Our PSX ( Power Scale Switch, compatible with ERK Electronic Relay Kit) and Q-series Switching Kits) both provide direct selection of the PS pots.Ī Drive Compensation pot is provided. BJTs, mosfets or relays can be used for this function. Additional PS pots can be paralleled, requiring the change of one resistor on the SV2 board, with the wiper selection synchronized with channel switching. The PS pot is ground referenced but sustains up to +60Vdc depending on the supply voltage. Multiple Power Scale ( PS) pots are readily added and switched in multi-voice amplifiers. In amps like this, it is advantageous to add our QS-LV Quiet Supply for Low-voltage to assure super-low-noise performance. Changing one resistor allows Vs to be far less than Va, in amplifiers where a large resistance ties Vs to Va with a corresponding large voltage difference. Screen voltage is typically just a few volts less than plate voltage, accommodated by the stock values in SV2. If your amp has bias-modulated tremolo, our TREM Tremolo Level Tracker is also required. SV2 + our VCK Voltage Clamp Kit comprise the Power Scaling solution for 99% of all cathode-biased amps:ĮVERY Vox AC-series amp needs SV2+VCK and may also require TREM See Power Scaling Kit Selection for more info. Our SV2 Power Scaling Kit for Cathode Bias offers cranked sound, as quiet as you desire! There are several variations of our Power Scaling Kits ( SV1, SV2, SV84, SV-TT and SV3). Cathode-Bias/Fixed-Bias Switching in Tube Power Amps.RBX Raw Bias Auxiliary Supply – When Do You Need It?.Power Scaling for Tube Amplifiers – Q&A.Independent Reviews of The Ultimate Tone Book Series.Hammond Transformers for Tube Audio Amplifiers.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |