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Hi All, I am looking for a HV Multiplier for a Tektronix 2235 the Tek part number is 152-0806-00. Can anyone help? Regards, Andrew

Steve B. wrote: Thanx Stan for response; I just looked up the price of new 8233's in the 2000 Antique Electronics Supply Catalog and it listed them at $37.20 each. Not as bad as $85 but still

cathode leakage/short in the otherwise fresh looking dead tube. No way to check for that now. I definitely don't want to risk a presently good 8233/E55L.<< Hi Steve. I have two used E55L tubes in my

Hiya Don and all the others, I've been checking a few things here and there and indeed re the D43, there is no +B reaching the vert amps. One of the sections in between caps (i.e. power supply filter

i just saw a manual on ebay for this, i have a 564 but not a "b" version

Yup, bingo. E55L/8233's have had quite a bit of interest in some of the audio circles, particularly the low power/single ended amp crowd. However, due to the extremely high Gm of this tube (45mA/V),

Steve Bringhurst wrote: I think you can find 8233's in the Antique Electronics catalog for around $50, still not cheap. As you have noticed, you can buy a used 3A6 or 3A1 for a LOT less than that

Hi, I've got a R564B rack mount storage CRO with a blown transistor in the power supply, not sure what other problems. I think the tube's OK. I have the schematic for a 564 low voltage and high

Sorry that my email reply meant for Andrew in Sydney went out to the group. I didn't check the reply address before I hit the send button (and I also didn't correct the subject title). It's kinda

Hello Andrew, Thank you for the reply from early May providing me with the TAS 465 service manual part number. I'm still trying to locate one (though it turns out my next door neighbor designed

--- Stan or Patricia Griffiths <w7ni@...> wrote:

--- Stan or Patricia Griffiths <w7ni@...> wrote:

Steve B. wrote:

something (sorry a true I do have quite a sense of humor, but on this topic it has been long exhausted elsewhere, thanx to the persistently reoccuring pointed derision therein of those who have

Hi Fernando, Check the power supplies in the D43. It sounds like something common to both the deflection circuits and beam voltages. It seems the horizontal circuits are working

Hi there, This might be a bit offtopic since I'm bringing Telequipment scopes to discussion. But then again Telequipment was bought by Tektronix in the late 60's I think, so I hope all is well

Interesting range of opinions thus far.. and *yes* there's a relationship to scopes in all of this, IMhO. At least re test equipment operation, there are physics-laws + state of the 'mensuration art'

Hello, I'd agree with both Stan and Dean. If you want to meet the specs spelled out in the manual, then you should go by the manual. But I and many others the ballpark estimate is good enough.

Hello, Perhaps a change in subject is would be good right now. I caught up on the topics because I recently signed up. Anyway did you check the horizontal plates for jitter ? Because I had a

"guitar amps sound different with different sets of tubes from different manufacturers. Damned if I know why, but they do. Sometimes radically different. I almost feel that I have a split personality