Can you believe it? Tape Project is ten years old! Thanks to everyone who has supported us in introducing studio quality tape reproduction to the audiophile community!

Recent Posts

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Reel to Reel Tape Machines / Re: New member - with STUDER A810
« Last post by eugen_syd on April 23, 2017, 11:09:21 pm »
Hi Garry,

I live in Australia too and I have one of these machines. Get in touch with me and I see if I can help you.

Regards,
EUGEN
2
Forum Rules / Re: Welcome to the Tape Project Forum - please read first
« Last post by High and Outside on April 19, 2017, 01:17:48 am »
One more thing: the signature line.

It's there for you to put your name in--see the first post, it's the first rule in the first post above, please review that post.

You may of course put additional information in the sig line, but there are a couple of things you may NOT put there: active links, and information in any language other than English.

This only applies to the signature line. You may include relevant links within a post.

We delete accounts of users who put active links in the signature line--this is due to a ridiculous number of spammers using that technique. If you want to have either of these things in your sig, you may get approval by emailing info at tapeproject dot com.
3
Tape Project Machines / another mx5050 thread
« Last post by drdeaner on April 17, 2017, 01:03:50 pm »
I have read through most of the MX5050 threads about improving playback sonics via new opamps, dc coupling between stages, and power supply upgrades. Early on, I decided to abandon my Otari electronics and go with external tube playback electronics (DeHavilland)  and have been really happy with the results.I don't doubt that the high end Bottlehead preamp would be as good or better.

Recently, I revisited the Otari schematics and decided to take a stab at improving things with my B2 II machine.  I removed the first 3 opamps in the playback stages (3 total opamps for 3 stages in each channel) and installed 8 pin machined sockets in their place.  I removed the headphone opamp and installed an 8 pin machined socket.  I obtained some BrownDog single to dual SOIC to DIP adapters.  I installed 2 LT 1028 8-SOIC opamps in each adapter and plugged them into the first 3 audio playback audio stages.  I took a pair of LME49600 current buffers and kludged them into an 8 pin machined socket so they could be plugged into the headphone IC socket and provide current  but no voltage gain.  Then , I shorted (eliminated)  all of the 'lytic coupling capatitors between opamp stages because the lt1028 has extremely low dc offset and those caps seem unnecessary. And lastly, I took the audio output through the headphone jack, bypassing the final 2 opamps for each channel in the audio stage that provide balanced output.  Taking the output through the head phone jack then provides a much better cable (or headphone) driving circuit, due to the buffers.  I did not change anything in the headphone circuit, so the current buffers are driving the feedback parts that no longer set feedback.  My Otari MX5050 B2 II has the mechanical guide parts obtained from Bottlehead as well as an Anthan capstan roller.  The machine has the mic inputs disconnected and those jacks are wired for direct head output.  A pair of dpdt switches by the new tape head outputs also can direct the tape head signals back to the otari electronics. And the heads were relapped by John French with a Flux magnetics 1/2 track playback head installed.

This all came out better than hoped.  Yes, the output is lower than the balanced output but enough in my system.  The internal playback is worth listening to, which before the mod, it wasn't.  If your plan is to get into playing back tapes, this could be a path for you to get going cheap (or cheaper) and provide an easy upgrade path when your funds allow.  Let me know what you think of the idea...I have actually done several B2 IIs already. It isn't better than my tubed preamp, but it is very nice and good enough to let you enjoy those great tapes.  Of course, you could start with a working MX5050 and not upgrade the mechanical parts to reduce cost. I figured the electronic parts cost about $100.

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Reel to Reel Tape Machines / Re: New member - with STUDER A810
« Last post by ironbut on April 06, 2017, 11:14:02 am »
Hi Garrym,

If your looking to source parts and advice, I suggest you join the Yahoo Studer Group.
I think you'll find a number of 810 users there that can give you plenty of info about your particular machine.
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Reel to Reel Tape Machines / New member - with STUDER A810
« Last post by Garrym on April 04, 2017, 08:20:24 pm »
Hello everyone, just thought I would introduce myself, my name is Garry and I live in Australia, I have owned an STUDER A810 (not working) for nearly 12 months now and am hoping that I can get advice from this forum to get this unit back up and operational again! I must admit it is not as easy as some of the B77's I have owned but then again this is not really a domestic type of machine.
I have started the recapping process for the power supply and motor boards
I was hoping to get some feedback on where or if parts are still available apart from the usual suspect EBAY??
The machine has a S/N 133 so is one of the very first, if numbers are sequential?
Thank you in advance for any suggestions as I know I have a bit of a road ahead of me with this one.
Kind Regards
Garrym
6
Tape Tech / REVOX C278
« Last post by zhira on March 29, 2017, 08:05:19 pm »
Could anyone help me with the following questions.  I just purchased a Revox C278.
Through the DIP switch it can go from 7.5 to 15 IPS, does this mean the unit is NOT a "logging machine"?
Does the capstan motor need regular lubrication, if so how often?
Any additional info would be great.  I just bought an extra pinch roller.

Thanks
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General Discussion / Re: Reorganization of the Tape Project
« Last post by xcortes on March 22, 2017, 03:25:56 pm »
Thanks for the update Paul.
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Tape Tech / Re: Using Pancakes to store recorded tapes
« Last post by astrotoy on March 22, 2017, 12:55:00 am »
Thanks, Paul.  Great idea.  I'll be doing some dubbing with pancakes and this will minimize the risk of a spill.  Not sure whether storing them that way is worth the risk.  Larry
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Istomin: Mozart Piano Concertos / Re: Some shipping, the rest soon
« Last post by High and Outside on March 21, 2017, 10:47:29 pm »
They are shipping to subscribers, and we have inventory on the shelves.
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Tape Tech / Re: Using Pancakes to store recorded tapes
« Last post by High and Outside on March 21, 2017, 10:44:23 pm »
I generally don't, but that's just because I don't like to handle pancakes--it's an unnecessary risk that I might spring the tape and wind up with a mess.

Having said that, I do handle them all the time, as we do our duping on pancakes. We have a regimen that minimizes the risk, and I recommend this to you if you should choose to store some of your tapes this way. We simply put the pancake between flanges whenever it's on the machine. This works great with the VIF style reel clamps we use on the ATR's, and it works fine with Tascam clamps too. Just put a spare flange on first, dimples up. Then put the pancake on. Then put another spare flange on, dimples down. Now secure the clamp and you're ready to go. You essentially have put together a reel for it, you just haven't screwed the reel together. Think of it as a temporary reel.
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