Search results

Well geez, how tall is an 811a tube? This box has alot of clearance inside, it could take anoth inch or so of tube hight with the platecap. it looks like the gu-50s will be a good choice then.... T23

BUMP

I guess I'll just have to look at the transformer directly, I can't find any referance to what transformers kris amps used, so i'll have to see if there is some sort of number on the brick itself. I was thinking, ( I got the schematic here somewhere) that the two tubes migh have there filiments...

How about the Russian GU-50 tube, I can put a voltage doubler on the filiment on my transformer (the gu-50 requres 12.6 volts), and the plate current seems to be 50ma. Does anyone know if the socket diameter is the same as the current sockets? Heres the tube data.

I don't think it can run on 220, a 6ju6 tube consumes 45 MA on plate, so three should consume 135 MA on plate T23

The transformer is supposed to handle up to 3 6ju6 tubes, so that means it should have 4.8 amps filiment current avalable. Ill have to look into the ma on the hv line. Its a kris boomer amplifer same chassis as the power pump. T23

I like the 807s too. But I was hoping I could keep the grounded grid setup, but with the 807 it has its cathode tied to a grid i beleive and cannot be used in grounded grid configuration. Do you have any suggestions about using the 807 instead maby in a sifferent configuration? Thanks T23

Is the RCA 809 triode a common tube? I am getting inconclusive results. Looking to build an amp with this tube because it meets the requirments I am looking for. Thanks. T23

Ok, would you have a recommendation as to what tubes I could use that would be more avalable then the current ones? Thanks, T23

Have an Alinco dxsr8t transceiver like new with Mars mod and extended recieve mod. Comes with Mic and power cord. Buyer pays shipping. No returns. Looking to trade this for radio stuff Amatuer/CB. Or a reasonable cash offer. Radio has continuous TX coverage from 1 to 29.9999 MHz. AM FM CW LSB...

I have a sweep tube amplifier, currently it has 2 6JU6 tubes in it, with 800 volts DC on the plates, the 6JU6 tubes consume 3.2 amps of heater current. I was thinking of converting this to use 2 or 3 811 or 811a tubes, would it be reasonable to use a voltage doubler circuit to get 1600 volt...

BUMP

Also an older Kenwood HF rig I might consider.

I am looking for an 11 meter base station with amplifier, or a working ft-101. Saturn, connnex or RCI BASE STATION. I will not ship outside of the u.s only lower 48.

BUMP

Comes with microphone* sorry about the typo.

Have an Alinco dxsr8t transceiver like new with Mars mod. Comes with Michael and power cord. Buyer pays shipping. No returns. Looking to trade this for radio stuff. 11m, anything else you think might be worth this. Radio has continuous TX coverage from 1 to 29.9999 MHz. Pictures of what...

I was thinking about an antenna with some gain.... I already have an end fed dipole.

The best base C.B antenna, and not the fiberglass ones.

I have been hearing broadcast type pirate transmissions in the 6.900 to 7.000 mhz range, but surprisingly not much pirate 2 way comms like 6.6 mhz is in europe. Is there a reason for this? Alot of equipment is capable of these frequencies. Been doing alot of listening lately and thought id ask...