tag:blogger.com,1999:blog-2098337119765190876.post7750654094509443547..comments2024-03-28T13:34:32.307+01:00Comments on VinylSavor: Tube of the Month: The 842VinylSavorhttp://www.blogger.com/profile/03255472557028244395noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-2098337119765190876.post-6711565374471899852018-06-23T02:54:01.444+02:002018-06-23T02:54:01.444+02:00The 842 is indeed quite rare. I hunted down about ...The 842 is indeed quite rare. I hunted down about 12 pieces, mostly ST shaped and 3-4 globes, and that was with internet stripmining for them :) <br /><br />One of the last amps I put on paper used the 10Y and 842 but sadly it was never finished as I could not decide on the other tubes and it was around the time I stopped building/listening. Now, 15 years later, I am afraid to use them as I only have 2 pairs and the rest are all different brands/constructions, plus the rarity makes me hesitant to waste these tubes<br /><br />So many awesome tubes out there. Keep lighting them up for us. I really enjoy your photos and stories!!!!<br /><br /><br />jimboAnonymoushttps://www.blogger.com/profile/16997783121951026364noreply@blogger.comtag:blogger.com,1999:blog-2098337119765190876.post-91816188646768227102016-03-31T22:29:41.583+02:002016-03-31T22:29:41.583+02:00Hi Tomas, I have acquired few 10, 801, 841 and a p...Hi Tomas, I have acquired few 10, 801, 841 and a pair of 842. I plan to use them as driver tubes. My plan is to make a 100TH A2 SE amp driven by an inverted inter-stage transformer & 801. I want to use 841 as the voltage amp. 801 and 841 will be in safe loftin white configuration with a 5ma ccs from the cathode of 801 feeding the plate of 841. 801 will have about 30 ma and grid of 100th will draw 20ma at idle. all the filament supplies will be CCS with a switch to change polarity every month. I have a preliminary schematic of this project. I will share it on various forums to receive critique and ideas for it. <br />My plan for 842 or VT52 is to build a small amp for close listing, such as chamber music or vocals and use it with open baffle full range speakers.<br />WasimWasimhttps://www.blogger.com/profile/09983974892231437930noreply@blogger.comtag:blogger.com,1999:blog-2098337119765190876.post-45149677875867454692016-03-31T18:57:17.484+02:002016-03-31T18:57:17.484+02:00Hi!
As far as I know the 842 and 841 are simply va...Hi!<br />As far as I know the 842 and 841 are simply variants of the 801a with different grid spacing to get different amplification factors and rp<br /><br />ThomasVinylSavorhttps://www.blogger.com/profile/03255472557028244395noreply@blogger.comtag:blogger.com,1999:blog-2098337119765190876.post-15923229100883991982016-03-31T17:46:09.955+02:002016-03-31T17:46:09.955+02:00I think 842 in upgraded st shape is the same as VT...I think 842 in upgraded st shape is the same as VT-52. I don't' remember where I saw it, but should not be difficult to find some link. VT-52 was also known as 45 special with 7.5V filament. I am just speaking from memory. I hope someone can give more concrete answer. Wasimhttps://www.blogger.com/profile/09983974892231437930noreply@blogger.comtag:blogger.com,1999:blog-2098337119765190876.post-49628473000275108122013-08-08T18:31:58.352+02:002013-08-08T18:31:58.352+02:00Thanks, Great blogThanks, Great blogMartinV56https://www.blogger.com/profile/07486076350126713882noreply@blogger.com