Messages

1

Reel to Reel Tape Machines / Re: Studer A810 with unbalanced preamp...

« on: June 13, 2014, 04:26:29 AM »

Thank you very much for extended trouble shooting procedure. I shall follow that accordingly.

In the meantime I checked my available two sets of cables how they are connected inside:

Cable #1

XLR pin1 together with pin2 and connected to RCA outer
XLR pin3 connected to RCA central (hot)

Cable# 2

XLR pin 1 connected to RCA outer
XLR pin3 connected to RCA central (hot)

Both cables just plugged to my vintage preamp unbalanced inputs and without source load (Studer A810) generate a lot of noise, mainly the Cable set #2.

Actually none respects the internal pin connection as suggested by you or Richard... These cables need some reconfiguration!

Cheers,

Guglielmo

Guglielmo,

the cable #1 is ok, but the absolute phase is inverted. You should swap pin 2 with 3.

The cable #2 can't work without introducing noise and limiting the bandwidth because the signal path is left open. Pin 2 and 3 must always be connected in balanced cables. At least you can leave floating pin 1.

My suggestion:

- swap pin 3 with 2 on the first cable.
- connect the ground of the RCA to pin 3 and the hot pin to pin 2 on the second cable

Have Fun!
Giorgio

2

Reel to Reel Tape Machines / Studer A812 TDC firmware help

« on: August 26, 2013, 11:54:34 AM »

Hi guys, I've just discovered that my backup BIN file for the EPROM sitting on the TDC board is corrupted.
These are the extended informations to correctly locate the firmware...

IC position: Tape Deck MKl
IC number: 08
Checksum: 68D3
Eprom model: 27128
Version: 14/90
Studer P/N: 1.811.997.26

Is there someone so kind to forward me the file in BIN format? I'm also considering to downgrade to previous versions if someone has the whole firmware (4x BIN files).

Thanks in advance!

Giorgio

3

General Discussion / Otari MTR15 password needed

« on: April 21, 2012, 11:53:41 AM »

Is there anyone here who knows the service password to enter in the protected menu of the MTR15? I don't have the manual, so unfortnately don't know it. Your help will be appreciated.

Thanks guys!
Giorgio

4

Reel to Reel Tape Machines / Re: Teac X-2000R - Can these Heads be recovered?

« on: April 05, 2010, 04:21:22 AM »

Hi Fabio, sorry for the delay.

I'm in the field from many years, firstly with RTR maintenance (the time when they were in regular use by professionals) than with their restoration and refurbishment. I've been always attracted by tape recorders (both audio and video) and was enough lucky to join what was hobby with work :-)

Please check my profile and follow the "My Lab" link to see a brief description of what I do. Text is in Italian only. I live near Modena.

I hope you spent a nice Easter :-)

Cheers,
Giorgio

5

Reel to Reel Tape Machines / Re: Teac X-2000R - Can these Heads be recovered?

« on: March 30, 2010, 07:34:46 AM »

Fabio, where are you from?
I live in Italy and can help you aligning your unit once you get the heads back.

Regards,
Giorgio

6

Reel to Reel Tape Machines / Re: The R2R machine used by the Fine's for your collection

« on: February 10, 2010, 02:30:01 AM »

Mark, send me a picture of the "Melodium Made in France" mics. I can try to have a response from a person that possibly used them.
He also repaired the old MKH series and used to have all the spares for those mics.

Best,
Giorgio

7

Reel to Reel Tape Machines / Re: Another historical "tidbit"

« on: February 09, 2010, 08:00:40 AM »

I have the pair of ED Nunn's original microphone's, that he apparently used to record all of what became the stereo Audiophile LP releases.  Rich Brown picked them up somewhere and I'm going to try and "restore them" - one has low output.  They work on the FM RF principal, whereby the signal from the (B&K) condenser capsule modulates an RF carrier which is then demodulated to output audio.  Fascinating to see and investigate - along with Nunn's original design notes.

Love to see them "ride again"

Charles

Hummm.... similar to the principle used by Sennheiser in their MKH Series?

Giorgio

8

Reel to Reel Tape Machines / Re: Most Ideal Stellavox model for TP tape play?

« on: January 14, 2010, 03:12:48 AM »

Wow, it's serial number is very near to that of my one (850.030).
I've swapped the XLR connectors in order to get "normal" arrangement for I/O. In the first units inputs were male (as per the old European standard, wiser in my opinion since live coneectors are always female...), as can be found on CCIR Nagra IV-S units too, and outputs were female.



About price: the last unit sold here in Europe in Dec 2006, went for Eur 7990.00 with only one headblock, so, what Kostas is asking, appears to be reasonable.

Giorgio

9

Reel to Reel Tape Machines / Re: Most Ideal Stellavox model for TP tape play?

« on: January 12, 2010, 06:34:21 AM »

Ki:

The Stellavox equivalent of the Nagra T-Audio is the TD9.  It was a studio machine that was mainly used for playback of field recordings.  In the TA case, these were often time-coded movie dialogue from an STC-IV.  The TD9 had the unusual capability of mounting 16mm-35mm film transfer heads as well as 1/2" and 1" mag-tape.  The head blocks and tensionometers were replaceable modules and it could accomodate up to 4 channels of audio.

These machines are quite rare and only a few of them seem to have made it to the US.  The two that I have located have 16mm heads.  Your best bet for information is the Rolland Schellin book "Stellavox: Voice of the Stars" (which both Charles and I contributed to) and the current "factory," which is JP Gurtner -- [email protected] at www.audioprojpg.com.

Mark Stahlman
New York City

Hi Mark, nice to find you here!

Happy 2010 to everyone from Italy :-)


Giorgio