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OK - I'm nuts - I was thinking CRT. Actually all 3 supplies are interchangable. It is just that some of the ratings or possibly components are slightly different. I have interchanged all these

Hi Bruce, I only know what the parts list in the back of the respective manuals says. And they say the 7934 uses a 620-0823-02 power supply, and the 7904A uses a 620-823-01 or 02 power supply.

I would look at the common mode voltages on the deflection plates and the geometry electrodes. I am guessing that they should be around 175V to minimize the fields in the gun structure. The gun

Hi Ed- That's fair. Please contact me off list to set things up. Thanks- Howard K3TOA ANATEK Retired _____ Sent: Saturday, March 04, 2023 12:56 PM To: [email protected]; [email protected]

It is in Erie, Co UPS extra large flat rate is $26. Add $10 for my work to securely box it and drive it to UPS drop-off point Ed

where is it [email protected]> wrote:

Chuck, are you sure about the 7934 and 7904A ? One is a standard scope, the other is a storage scope ?? Cheers! Bruce Quoting Chuck Harris <cfharris@...>:

I think your only hope without a lot of work would be to find an original CRT as it was a special bi-stable transfer storage CRT. See the bottom of this page: https://w140.com/tekwiki/wiki/7834 Sam

The DIY? was for? a tds Tek scope...: but the schematics & design & fpga programming could provide helpful hints...? for a DIY Vector CRT project. FPGA TDS7XX Tektronix scope CRT to LCD color

Old or missing or dear ( electrostatic ) CRT replacement is going to be a continuing problem forward... The Quest & Adventure: ---? Any thoughts about a custom LCD ( fpga ) module? could be

The 7934 and the 7904A are for the most part interchangeable (620-0823-01/02). But, the 7104 (620-0276-00), 7834 (620-0250-00), and the 7904 (620-0461-00) are each unique in this group. I didn't check

Hi Vince- I'm in Chandler, Arizona 85248. Let's see how bad the shipping will be! Thanks- Howard Katz K3TOA _____ From: [email protected] [mailto:[email protected]] On Behalf Of Vince Price via

Hi I have a CRT coming from a 7613 (memory) Could it help Rgads Jean L C Ruelle De : [email protected] [mailto:[email protected]] De la part de G Hopper, KB7WSD Envoyé : samedi 4 mars 2023

John, just a wild idea: would it be possible that something got magnetized in lower-beam structure of the tube? Chris

What would you estimate shipping to 29621 zip code? Vince

Near Denver CoEdSent from my T-Mobile 4G LTE Device

Where are you located? Vince

I think that you meant 465B as there never was a 475B. There was a 475A which extended the bandwidth to 250MHz. There were 475A's with the IBM logo as I have one of those. The 475 is certainly worth

You might contact the Vintage Tek Museum and see if one of their members might have a CRT for it. I don't know what happened to Deane Kidd's stock of Tek parts but perhaps someone there knows or can

I'd like to have it. Howard Katz _____ From: [email protected] [mailto:[email protected]] On Behalf Of Dave W1BVV Sent: Friday, March 03, 2023 6:14 PM To: [email protected] Subject: Re: