Products > Test Equipment
TEK 7603 CRT replacement alternative
diyarpette:
Dear all,
that's my first post here (after many months lurking). Good day from France to everyone :)
Lastly, I have had the opportunity to puchase a tek 7603 mainframe with 2 vertical plugins and its time base, for 80 euros only which I assume is a fair price for a working unit.
Alas, when it came to my house, the CRT has been broken during the shipment :(
I trust the vendor, he was reluctant to send it, due to the weigth and fragility, and it's me who convinced him to send it anyway. I took my share of responsabilities in the disaster and decided to pay and keep the scope, in the hope of finding a replacement CRT.
Sure, I could certainly sale the plugins separately and recover my funds, but I prefer to repair it and add it to my small (mainly tek) scopes collection.
It seems not so easy to find a T7400 CRT (P/N 154-0640-10) in France. Also, at this time I don't see much (in fact no one) CRT for sale on the bay... a few complete 7603 are offered for sale sometimes, but I don't see the point in buying another working unit and strip the CRT from it, or keep the first one for replacement parts only. I would like to resurect this one.
Here is my (maybe silly) idea: I have sumbled upon an empty and cheap 5110 which bears a CRT with the same size that the one used in the 7603.
I know this is not the same model, and the 5000 series is a low cost,low bandwith scope.
I am also aware the the CRT used in the 5000 has no post deflection acceleration and is a different kind of animal than the T7400.
Is it perfecly ridiculous to try to adapt a 5110 CRT in the 7603 ? Is it a lost battle in advance ?
Should I wait, in the hope to find a genuine 7400 CRT ?
Regards
Pascal
perdrix:
I suggest you ask the folks on the Tekscopes (and Tekscopes2) mailing lists at groups.io:
https://groups.io/g/TekScopes
https://groups.io/g/TekScopes2
You may find a member in France has exactly what you want.
David
diyarpette:
Hello,
thank you for your answer.
I will do that.
Regards
Pascal
tautech:
--- Quote from: diyarpette on January 26, 2023, 04:56:25 pm ---Should I wait, in the hope to find a genuine 7400 CRT ?
--- End quote ---
AFAIK Telequipment D83 used the Tek 7603 CRT and to find one of them in the UK or EU might be very possible.
Just looked up the PDF for the D83 mainframe I had and indeed the CRT is listed as a Tek 7400 with P31 phosphor.
Look for d83mainV2.pdf online (15MB) and at the foot of P16 is the listing for the CRT V301.
jonpaul:
Bonjour cher Pascal :
Une très mauvaise idée d'expédier des mainframes 7000 TEK ou des scopes CRT. L'emballage des boîtes et les vibrations les endommagent également.
Ils doivent être récupérés en personne !
SVP, Contacter moi via PM si vous préférez.
Bien à vous, et Bon Chance!
Jon
Paris 6eme
Si vous connaissez SN à Paris, il pourra peut-être vous aider à trouver une solution,
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