NOS Tube Rectifier With Soft Start free s&h

*****THIS IS A RECTIFIER TUBE WITH SOFT START FOR TUBE AMPLIFIER OWNERS WHO WANT TO PROLONG THE LIFE OF THEIR VALUEBLE/IRREPLACEABLE OUTPUT TUBES.DIRECT PLUG-IN FOR 5U4G,WE274 GZ34,GZ32 ,5AR4 & 5Z3,OCTAL BASE ( ALSO AVAILABLE IN 4 PIN BASE,PLEASE SPECIFY WHEN BUYING)
***** THE SOFT START RECTIFIER TUBE ALLOWS THE OUTPUT TUBE FILAMENT AMPLE TIME TO WARM-UP BEFORE THE HIGH-VOLTAGE(B+) REACHES THE PLATE. IN THIS WAY,IT PROTECTS YOUR RARE/EXPENSIVE OUTPUT TUBE LIKE 300b,KT88,PX25 RS 242 ETC.WITHOUT THE HIGH VOLTAGE DELAY,BASED ON RESEARCH,OUTPUT TUBES DECREASES LIFE SPAN SIGNIFICANTLY.
*****EVERY TIME YOU TURN THAT SWITCH-ON WITHOUT ENOUGH FILAMENT WARM-UP,CATHODE STRIPPING OCCURS AND TUBE EMISSION KEEPS GETTING LOWER AND LOWER UNTIL SUCH TIME THAT IT'S TOO WEAK & UNUSABLE.NOW IS THE TIME TO PROLONG THOSE RARE AND HARD TO FIND TUBES.

*****THIS SOFT START RECTIFIER TUBE GIVES GRADUAL RISE OF THE HIGH-VOLTAGE(B+)SO WITH THE PLATE CURRENT WHICH IS VITAL FOR OUTPUT TUBES LIFE.THIS IS NOT A TIME DELAY RELAY SWITCH,THAT AFTER FEW SECONDS THE MAXIMUM HIGH VOLTAGE AND CURRENT WILL BE SLAM TO THE PLATE.THIS WILL GIVE YOU PEACE IN YOUR MIND THAT EVERY TIME YOU TURN THE SWITCH ON,YOU DON'T HAVE TO WORRY ABOUT ANYTHING ELSE.

*****THIS IS HOW IT WORKS;IF THE MAXIMUM PLATE VOLTAGE OF YOUR AMP=400VDC
Plate voltage after;
30 sec=10 volts
60 sec=80 volts
75 sec=200 volts
100 sec=400 volts
*****TEST RESULT FOR MAXIMUM PLATE VOLTAGE(Vp) AND PLATE CURRENT(Ip)ON ONE OF THE OUTPUT TUBE USING FISHER 100 PP MONOBLOCK AMP WITH 8417 TUBES.


SOFT START RECTIFIER TUBE Vp=464, Ip=53.4 ma
//5U4GB Vp=444, Ip=50.4 ma
//////5V4 Vp=448, Ip=51.2 ma(original rectifier tube)
////5U4G Vp=444, Ip=50.4 ma
////GZ32 Vp=460, Ip=52.1 ma
////GZ34 Vp=474, Ip=53.8 ma,THIS PROVES THAT THE SOFT START(SS) TUBE DOES NOT ALTER THE EQUIPMENT ELECTRICAL OPERATION.

****THIS IS THE ONLY TUBE RECTIFIER THAT CAN DO THIS TYPE OF DELAY.YOU CAN STILL USE YOUR OLD RECTIFIER TUBE IF YOU WISH TO OR FOR COMPARISON.
*****RECTIFIER TUBES LIKE 5U4,5V4,AND EVEN WESTERN ELECTRIC 274 DON'T HAVE THIS CAPABILITY.SOME HAVE ONLY 12-15 SEC DELAY BUT IT IS NOT ENOUGH.

******QUESTIONS ARE ALWAYS WELCOME FOR OTHER TYPES OF TUBE RECTIFIED AMPLIFIERS.