choke

Hi guys, I wanted to share some measurements I've made with a choke input supply. The test conditions were as follow: - Same amplifier (Allen Organ) with a 500 VCT -> dual 5AR4 rectifiers -> choke -> 250 uF -> B+. - Same tubes and test methodology. - Line kept at 120 VAC in all cases. -...

I'm trying to get to the next level on a budget. I was gifted this scope. The scope is super clean inside and out. There are 2 variable inductors or chokes on the vertical board. One was broken in half, the other had a leg not soldered in and partly hanging loose. The devices look identical in...

Hello everyone, I'm building a tube amp based on the 6N2-6P1-6E2 design from a chinese-made pcb. I want to add an in-line choke in the power regulation section, right after the two AC rectifying diodes. However, I noticed in most other designs, there is always an electrolytic cap (~100 uF...

Howdy folks... I've got a couple of chokes scavenged out of an old 1960 RCA TV. One of them is pretty small, and measures 899 mH @ 120Hz on my Agilent U1732C. This smaller one I've found on the Photofact for the TV -- RCA 94341-15, rated at 600 mH @ 270mA, DC resistance 46 ohms. I figure...

Diversions from day-job work desperately needed, so... been playing with the power supply for the 6550 amp I'm contemplating. I'm concerned with using a choke in the power supply because of the inductance drop at full power. Even the 3H Hammond 193N is only rated at 500mA. I used this choke...

I ordered an MC225 from a seller on the evil bay. Shipment will take it's time (estimated beginning december), so that leaves me preparing for the worst... Reading all there is to read on this amp, including several fine topics on this forum, I couldn't find much on the optimal values of the PS...