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Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc. |
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27th Jan 2016, 11:52 pm | #21 | |
Dekatron
Join Date: Mar 2008
Location: Worthing, West Sussex, UK
Posts: 5,185
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Re: PZ30 failure Bush TV22.
Quote:
I reckon if you get a good one they will last many years. As John says, the PL38 is a sturdy valve that seldom fails. I have never needed to replace one yet. Mark |
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28th Jan 2016, 12:21 am | #22 |
Heptode
Join Date: Jun 2006
Location: Ware, Hertfordshire, UK.
Posts: 988
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Re: PZ30 failure Bush TV22.
If ever a TV22 goes through PL38 and PZ30 valves it is worth checking the line drive.
I would reccomend replacing the ECL80 with a new one. Poor line drive will mean that the PL38 will be biased on most of the time. I would not worry about the valve damaging the lopty. It is usually the other way round, in that in the TV22, if it eats PL38 valves it usually means that the lopty is very rusty and running hot... Cheers Andy
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28th Jan 2016, 1:11 am | #23 |
Heptode
Join Date: Jan 2008
Location: Bristol, UK.
Posts: 981
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Re: PZ30 failure Bush TV22.
Thank you Ladies and Gentlemen.
Howard hello. Well Langrex was one of the ones I tried and the following message came up." Below is a list of valves that I will be putting on e-bay in batches, I will not be stocking them again." Now this list seemed to be hundreds of valves. Very very strange. I will try contacting them just as a matter of interest. Hacked? Malk Scott thank you, it's typical I recon they do it on purpose. When I checked there was 1 of unknown quality at £6.00! Hi Silicon thanks no dry joints and all the valves were replaced with NOS. Reservoir caps replaced and correct. Thanks for the pointers. Appreciated. julie M.Thank you for the advice it is most appreciated. Heatercathodeshort. Hello John a valuable bit of information/history there. I will print out these and put them on file. Beery Thanks I feel better about the LOPT now, when I got the22 it had a dead one amongst other things. The ECL80 was new at the same time as the PZ30 and PL38. FERNSEH. Sir I thank you for your very kind offer, I will be in touch, tomorrow now, well actually it is today now. Thank you again . Cheers. Geoff. |
28th Jan 2016, 10:11 am | #24 |
Dekatron
Join Date: Jun 2005
Location: Warnham, West Sussex. 10 miles south of DORKING.
Posts: 9,147
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Re: PZ30 failure Bush TV22.
A half dozen of the guilty men. Note two are yellow label NOS obtained at different times and from different sources. They look so innocent when in a gang. You have to split them up to see their real colours..John.
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28th Jan 2016, 10:24 am | #25 |
Dekatron
Join Date: Mar 2008
Location: Worthing, West Sussex, UK
Posts: 5,185
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Re: PZ30 failure Bush TV22.
I think I would remove the bases and use them for target practice
Now, that chassis in the background looks somewhat familiar... Mark |
28th Jan 2016, 10:36 am | #26 |
Hexode
Join Date: Mar 2012
Location: East Yorkshire, UK.
Posts: 354
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Re: PZ30 failure Bush TV22.
Hi Geoff
Re Langrex, could you be thinking of Gerry of Crowthorne Tubes? He is retiring but Langrex are a different outfit. See here http://www.langrex.co.uk/ They quoted me six quid for another octal rectifier.
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Howard |
28th Jan 2016, 12:50 pm | #27 |
Heptode
Join Date: Jan 2008
Location: Bristol, UK.
Posts: 981
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Re: PZ30 failure Bush TV22.
Hi Howard. I wasn't thinking of Gerry actually he was one of the ones that had slipped my memory but I did a google search and Langrex came up and being a familier name clicked on the link and up came a page etc. it was headed Langrex. As I said very very strange.
I did get onto their site later and could not repeat what happened originally. I don't know what happened!! Thank you for your suggestions. Cheers. A somewhat puzzled Geoff. |
28th Jan 2016, 6:12 pm | #28 |
Dekatron
Join Date: Jun 2005
Location: Warnham, West Sussex. 10 miles south of DORKING.
Posts: 9,147
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Re: PZ30 failure Bush TV22.
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29th Jan 2016, 9:45 am | #29 | |
Octode
Join Date: Oct 2005
Location: Wimborne, Dorset, UK.
Posts: 1,407
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Re: PZ30 failure Bush TV22.
Quote:
If you have that many "duffers" then perhaps you should make some festive series connected lights from them and hang them round the workshop! I'd like to see a picture of that! Only 48 weeks to go!! All the best. Cheers
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Lee |
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