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Hi, The two original input level pots drifted and the recording levels weren't matched. I therefore put two new originals from Studer, but they no longer have the same value. Moreover, they are double 50K pots instead of single 5K, causing the level to jump from none to high at only position...

Hi, I'm looking for a dual balance (25K linear from memory) potentiometer for a Revox A77. The pot works, but makes constant noise while rotating, and contact cleaners won't help even after putting quite a lot of it inside the pot. I won't mind getting a used one as far as it's tested in great...

Hi, I'm always looking for old AEG Magnetophon machines (1935-1945) and tapes. I have the FT4 and the K8. Will only consider fixed price propositions. Thanks ! David

Hi, I currently happen to record a piano competition and some private auditions using an old Nagra III which works great. I also just put a hand on a Nagra E but I don't like being limitated to 7.5ips. Currently, I can record without loss on these two ones, meaning that I can immediately switch...

Thanks for your replies. I'll see how the tapes I purchased sound once I receive them. I haven't checked the market for collectors and won't go through this, but I'll be amazed if I could see some web page talking about expensive ones. I'm used to expensive LPs like early Decca stereos and...

Don't worry, I'm not a competitor, I'm just buying (well, already bought) about 15 tapes with classical music, and I won't build a large collection. I mostly record live concerts, so you can bid without worries :)

Hi, I recently got a small 4-track Akai deck with GX heads and two pre-recorded reels with classical music and jazz. As I liked the sound, I thought I could build a small collection of classical titles that I often listen to, but before that I wanted to know the following: - Since lots of these...

Hi, I'm looking for the service manuals for: - Nagra SNST reel recorder (not the SNST-R but the usual SNST) - Nagra DSP playback unit for the SNST Both are not working. The recorder outputs some DC and the amplifier outputs nothing. Thanks ! David.

Hello, Anyone has some schematics for the various German AEG Magnetophon models ? Especially models FT4 and K8. My K8 schematic looks incomplete. There're a few things added in my machine, or which have not been put on the schematic (it could be an earlier one as well since there were so many...

Those Revox often have dry electrolytic capacitors. If you hear a hum in the speaker, it is likely that the main power supply no longer provides accurately rectified current. This may hang the zero locator as this function is run by a microprocessor board (6502 cpu + 4K ROM) which will obviously...

There is also McMaster (www.mcmaster.com) who sells a lot of belts. You can basically select your belt per: - material: neoprene, etc - lengs - thickness - diameter They sell all sorts of belts: round, flat, etc. The URL for the main belts section is http://www.mcmaster.com/#drive-belts/=4y3ae6...

One test to perform is to engage the play function, without tape, but by pulling the guide on the right to avoid automatic stop. When you press play this way, check whether the capstan runs. If it does, then your tapes are bad. If it doesn't, then you have a trouble around the motor. If you're...

Hi, Where can I find a similar tool as this one, for other tape types (using AEG cores) ? The pictured one refers to the PER525 tape but works with all 52µm tapes. Any ideas ? Thanks !

Thanks for your replies. Here's a chart giving some interesting infos about these tapes. I thought the 468 & 528 had the same oxyde as per "8" digit, usually standing for the type of oxyde. But since it's not the same thickness (46µm vs 52µs) some parameters may change. You tell me ! However...

This is the SNST, so STEREO version. The original one was mono, and existed in two versions: the SNN (Normal speed) and SNS (Slow speed). The SNST also used a sparate playback unit called DSP, very cute. I just got a SNST a few months ago, it isn't cheap but worth it if you like that machine...

Hi folks, I'm just checking a lot of 100s of 10" reels I bought a few months ago. All are from RTL radio (Paris). Tapes are mostly PER525 and PEM468. I want to keep the "nicest" ones (i.e not shortened or with too many splices) to record live concerts. I ussually record PER528 tapes but I have...

Hi, Anybody can supply the schematic and service information of the Nagra SNST and its DSP amplifier unit ? Thanks, David

Sometimes I happen to record on LGR35 when there's a live concert on radio. I read several times those bad batches stories, and wonder if there's any database about them ? How can I make sure that my tapes will work fine in the next few years ? Thanks !

Thanks for your infos. As I only record classical music I'll have to dispose of them or eventually include them with a machine when I have one for sale. One is a complete reel, another is 80% complete (I added some tape to make it 730m or so) and the last one is a mixture of various 478s to fit...

Hi, I put a hand on a couple Quantegy 478 reels. I usually use PER528, Rmgi LGR35 and Maxell XL35 but don't know about the 478. Is it bias compatible ? Is it a +3 or +6 ? How thick (in microns if possible) ? Thanks in advance, David