DYNACO ST70/120 VTA, M125, MK3, DYNA70/120, Upgrade-Therm. Compensated SMT334
DYNACO ST70/120 VTA, M125, MK3, DYNA70/120, Upgrade-Therm. Compensated SMT334
DYNACO ST70/120 VTA, M125, MK3, DYNA70/120, Upgrade-Therm. Compensated SMT334
DYNACO ST70/120 VTA, M125, MK3, DYNA70/120, Upgrade-Therm. Compensated SMT334
DYNACO ST70/120 VTA, M125, MK3, DYNA70/120, Upgrade-Therm. Compensated SMT334
DYNACO ST70/120 VTA, M125, MK3, DYNA70/120, Upgrade-Therm. Compensated SMT334
DYNACO ST70/120 VTA, M125, MK3, DYNA70/120, Upgrade-Therm. Compensated SMT334
DYNACO ST70/120 VTA, M125, MK3, DYNA70/120, Upgrade-Therm. Compensated SMT334


$25.0 Buy It Now or Best Offer
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Seller Store kotra-cz
(163) 100.0%,

Location: Velke Popovice, default
Ships to: US,
Item: 166905816917

All returns accepted:ReturnsNotAccepted
DYNACO:DYNACO
Series:SMT moduls
Type:Mounting Kit
Item Height:0.7
MPN:TES
Material:IC+passive components
Country/Region of Manufacture:United States
Item Depth:0.2
Item Width:0.4
Suitable For:CCS Phase Reversers

SMT-334 modul The problem boards VTA ST-70 with LM334 is solved! CCS Zero temperature coefficient current source for tube phase InverterCCS (Constant Current Source) Zero temperature coefficient current source SMD for tube phase Inverter completely removes the distortion caused by the heated amplifier. Suitable for drivers ST-70 VTA and other CCS inverters. Direct replacement! All VTA designs using the LM334 for the Phase Inverter tail suffer thusly: long warm up time, temperature sensitivity and balance instability. This can be remedied very easily. Due to the LM334 instability, the Phase Inverter gain constantly changes, and as a consequence, the image wanders. The amps never reach equilibrium. At a minimum, move the compensated LM334 to the underside of the driver board. Note the orientation of the compensated LM334. On the bottom, the LM334 rounded side is toward the transformers. Mounting under the board will prevent some heating by the tubes, helping to stabilize thecompensated LM334. The current may not achieve design values quickly as the internal chassis temperature rises slowly.For the Temperature Compensated Full Monty:CCS parts go on the PCB underside as shown. The amp now very stable. With compensation, the LM334 stabilizes rapidly and does not drift. Sonic image now remains rock solid. Phase splitter balance is surprisingly good, tracking perfectly from naught to clipping.This is an easy upgrade to make and set of two is only $25 + shipping.

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