For all those whose time is too valuable to ponder OH Schade's tome covering rectifiers & filters. here it is summarized from RDH4.
When RDH4 first appeared I scraped the $$$ together to buy a copy. I've designed many PS & other circuits with help from the contents of that book.
RDH4 was reprinted by Newnes of the UK a while, so I bought that as well. If we look hard enough on the iNet the entire book is available in 42 PDFs.
Another must-have for any serious pretender of this art is Fred E Terman's Electrical & Electronic Engineering #4, McGraw-Hill Publishing.
Many books on Toob Engineering are available on the used market as Geezers like me expire.
Try Alibris.com, I've bought several out-of-print books there, some covering engineering. And a few on controversial subjects.
When RDH4 first appeared I scraped the $$$ together to buy a copy. I've designed many PS & other circuits with help from the contents of that book.
RDH4 was reprinted by Newnes of the UK a while, so I bought that as well. If we look hard enough on the iNet the entire book is available in 42 PDFs.
Another must-have for any serious pretender of this art is Fred E Terman's Electrical & Electronic Engineering #4, McGraw-Hill Publishing.
Many books on Toob Engineering are available on the used market as Geezers like me expire.
Try Alibris.com, I've bought several out-of-print books there, some covering engineering. And a few on controversial subjects.
Attachments
You could use a pair of thyratrons for a regulated power supply. Thyratron's are still available and cheaper than valve rectifiers and most can handle a lot of current, the T41 for instance 500mA peak with a Vdrop of 40v.
Got a problem at this end. AVG is blocking the file as a security risk.
I'll try on a different computer.
OK, fixed at this end, PDF downloaded on this one.
THX
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Better get going, your client will find someone else to do the work.
Life & business are that way, I can relate to personal experience.
45 yrs in sales teaches many lessons.
Life & business are that way, I can relate to personal experience.
45 yrs in sales teaches many lessons.
I think 300mA with a pair of EZ81 and capacitor input is probably pushing it, you can do better with choke input. I had a pair of EICO HF-30 (IIRC model #) which used a pair of EZ81 in parallel and a quartet of EL84 in the output stage, idle current was 200mA total - I think that is a reasonable upper limit for a pair of EZ81
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Ian, it depends entirely on how you deploy the EZ81's, as one configuration will surpass even the 500mA wish-list requirement.
It never ceases to amaze me how difficult it is for people to provide constructive replies. 🙁
There were several constructive answers.
The only action seen on your side was to reject them all.
Kibitzing maybe??