I may have located a company in UK that can handle the rewinding of these transformers. It won't be dagger cheap - they gave me a ball-park figure of about GBP100 plus tax and delivery, but that was w

It doesn't impact us at all - we moved over to groups.io lock stock and barrel (including all files and pictures) ages ago. D.

QService have a scan David

So, I have to ask: What charge rate is OK for long term float of Ni-Cd cells? D.

Is the ball bearing present in the closing mechanism for the sensor? You were testing with it fully closed I assume? David

I too considered buying that Ramco 11801B for about 1 atto-second at which point SWMBO muttered something along the lines of "no more kit"! D.

Yes a very sensible modification to make to any 6302 - the earlier single resistor approach was a pain to calculate. David

Pity that document doesn't cover the CRTs used in the 7000 series 'scopes. David

I wish I had the space for this and a fiche viewer, but I don't. I do hope that this finds a buyer from this group (or, whisper the name, Tekscopes2) who can make the content available to the communit

Tell me about it - my 8 year old Canon Mg8250 Inkjet needs a new print-head - but Canon has discontinued supply of the part :(. Grrr... D.

Be warned, IIRC the linkage that connects between the front panel knobs and the spindles on the HV box must be electrically insulating. You so don't want 1kV on the front panel knobs! David

David Rawding *used* to supply replacements for the 576 transformer, who I believe was once (and may still be) a member of the group? HtH David

Yes, but first you have to know which server blacklisted you and AFAIK the groups.io bounce warning doesn't tell you. Is there any way to get the information out of groups.io? D.

As I understand it this happens when your posts are sent out to the subscribers and some of the recipient's mail servers (typically run by their ISP) decide that they don't like your email address, or

The small ICs all over the 7A26 board are socketed. I would be inclined to suspect gain set components rather than the ICs themselves. David

OK I'll make some guesses. 1. Have you checked that the output level from the attenuators is correct (same both channels)? 2. Does the problem occur at other volts/div settings? 3. What frequency sign

Just go to <http://artekmanuals.com/manuals/tektronix-manuals/> and when it has finished loading just type 576 in the search box. Dave

Yeah well I bought it from the USA and paid a pretty penny for it and the postage :) D.

Yes well I do have a single page at a time scanner, but it's a PITA to scan > 1-2 pages as it doesn’t have a duplex autofeed.

I do have the later 576 Service Manual but lack the scanner ... David