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| Quadtech 1659 RLC DigiBridge project |
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| mawyatt:
We did same for our pair of 2465. Fixed defective hybrids, bad waveform cal source, recapped everything, clean up and so on. Nice analog scopes!! Best, |
| DavidAzulay5000:
--- Quote from: mawyatt on January 21, 2023, 04:52:22 pm ---We did same for our pair of 2465. Fixed defective hybrids, bad waveform cal source, recapped everything, clean up and so on. Nice analog scopes!! Best, --- End quote --- me too I did a full capacitor recap And in one of them defective hybrids replaced In the picture with the red arrow 2 were completely repaired and the third Need to replace the A5 board Basically the story started with a friend giving me the 2465 as a gift To fix it, I bought a cheap 2445 for 70$ for the parts. After I fixed the 2465 I couldn't not give 2445 a chance to come back to life So I bought a cheap 2445 for 60$ I fixed the 2445 . Then I wasn't able to it to give the third 2445 a chance So I also completely repaired it, only it has the original defective hybrids from the first project Needs replacement. And an A5 board that needs replacement In the future I will bring him back to life Because I have no intention of purchasing another 2445 I am not able to take advantage this amazing equipment just as an organ donor I bought most of my measuring equipment broken and fix and calibrate them. In Israel, old measuring equipment is very cheap I will probably later buy the Agilent HP 83732B 10MHz to 20GHz Synthesized Signal Generator that he can sell it to me for less than 1000 dollars |
| Vgkid:
Nice job on the 1659 repair. Looks like that psu took some damage. My older 1658 , and newer 1689 both use a conventional transformer linear supply. |
| DavidAzulay5000:
--- Quote from: Vgkid on January 21, 2023, 06:34:38 pm ---Nice job on the 1659 repair. Looks like that psu took some damage. My older 1658 , and newer 1689 both use a conventional transformer linear supply. --- End quote --- 1giga ohm test and more |
| jonpaul:
Bravo, great job. Wonderful machine, My original 1659 GenRad is working OK but loud fan and the keypad decal gone. Only quirks... 1/ Keypad decal often lost or damaged....Would love to get a keypad decal/overlay as you have made. 2/ The leaded component test connector needs a lead/4 wire/BNC adapter, they exist byt rare. I would have added 4 floating BNCs to the front to replace the test connectors for use with ext 4 wire leads or tweezers. Jon |
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