Login / Register
 
AC701 tubes are now selling for $2,750 ea?
New Reply
Subscribe
elambo
Thread Starter
#1
13th January 2011
Old 13th January 2011
  #1
Lives for gear
 
elambo's Avatar
 
Joined: Aug 2004
Location: Up here
Posts: 7,294

Thread Starter
elambo is offline
AC701 tubes are now selling for $2,750 ea?

Is this really the going rate for an unused Telefunken AC701?
Quote
1
#2
13th January 2011
Old 13th January 2011
  #2
Lives for gear
 
mikymike's Avatar
 
Joined: Mar 2007
Location: The ATL
Posts: 657

mikymike is offline
elambo
Thread Starter
#3
13th January 2011
Old 13th January 2011
  #3
Lives for gear
 
elambo's Avatar
 
Joined: Aug 2004
Location: Up here
Posts: 7,294

Thread Starter
elambo is offline
That's the old price and they've been sold out for a looong time.

And we're talking unused here - not used and de-soldered.
Quote
1
elambo
Thread Starter
#4
13th January 2011
Old 13th January 2011
  #4
Lives for gear
 
elambo's Avatar
 
Joined: Aug 2004
Location: Up here
Posts: 7,294

Thread Starter
elambo is offline
Klaus Heyne posted this on his forum only a few days ago:

"I know of a few European collectors who each sit on excess of 1000 AC701."

If that's true, and they're asking $2,750 with a straight face, then they're holding back their stock and creating an astronomical artificial value for this tube.

Rare? Expensive? If we're understanding Klaus correctly, it's all merely hype.
Quote
1
#5
13th January 2011
Old 13th January 2011
  #5
Lives for gear
 
Piedpiper's Avatar
 
Joined: Jan 2009
Location: Between the Notes, Iowa
Posts: 3,202

Piedpiper is offline
__________________
Tim Britton
producer, engineer, musician, audio sales
http://www.piedpiperprod.com
http://uilleanpipes.com

row, row, row your boat...
elambo
Thread Starter
#6
13th January 2011
Old 13th January 2011
  #6
Lives for gear
 
elambo's Avatar
 
Joined: Aug 2004
Location: Up here
Posts: 7,294

Thread Starter
elambo is offline
#7
13th January 2011
Old 13th January 2011
  #7
Lives for gear
 
Joined: Dec 2004
Posts: 1,223

Flymax is offline
I think its like $700
#8
13th January 2011
Old 13th January 2011
  #8
Lives for gear
 
Stitch333's Avatar
 
Joined: Aug 2006
Location: Western MA, USA
Posts: 3,514

Stitch333 is offline
Much like metals and commodities during times of fiat value nose-dives:
Old NOS vacuum tubes will only go UP in price from here.
They are not making any more and the ones they have made will be slowly
consumed and used, therefore making current stocks rise in price as supplies dwindle.
__________________
Little Studio

"Run to the hills, run for your lives."
-Iron Maiden
#9
13th January 2011
Old 13th January 2011
  #9
Lives for gear
 
Plush's Avatar
 
Joined: Jul 2003
Location: EARS/Chicago
Posts: 5,560

Plush is offline
Nope, $2500 is not the price.

Just buy in DE for $100. I know a place that has upwards of 500 NOS AC701K.

No big deal.
__________________
Atelier HudSonic, Chicago

EARS-Chicago, Engineering And Recording Society

http://www.ears-chicago.org/
Deaf before Dishonor

http://soundcloud.com/hudson-fair
Quote
1
elambo
Thread Starter
#10
13th January 2011
Old 13th January 2011
  #10
Lives for gear
 
elambo's Avatar
 
Joined: Aug 2004
Location: Up here
Posts: 7,294

Thread Starter
elambo is offline
Quote:
Originally Posted by Stitch333 View Post
They are not making any more and the ones they have made will be slowly
consumed and used, therefore making current stocks rise in price as supplies dwindle.
Unless Oscar fires up his equipment and starts rolling out AC701s, which I'm sure he will do once the supply tappers off.
#11
13th January 2011
Old 13th January 2011
  #11
Lives for gear
 
Stitch333's Avatar
 
Joined: Aug 2006
Location: Western MA, USA
Posts: 3,514

Stitch333 is offline
Quote:
Originally Posted by elambo View Post
Unless Oscar fires up his equipment and starts rolling out AC701s, which I'm sure he will do once the supply tappers off.
If its anything like the "WE 408 in the VF14 case" trick,
the originals will double in value when these come to market...

I've heard stories of original filament material being sourced, but
I'm skeptical that there will be anything sonically close, if at all, made.
elambo
Thread Starter
#12
13th January 2011
Old 13th January 2011
  #12
Lives for gear
 
elambo's Avatar
 
Joined: Aug 2004
Location: Up here
Posts: 7,294

Thread Starter
elambo is offline
There's no shortage of AC701 fakes.
Quote
1
#13
13th January 2011
Old 13th January 2011
  #13
Lives for gear
 
Joined: Dec 2005
Posts: 3,070

salomonander is offline
i dont know where you guys are buying your tubes. but i bought a matched pair for 400 euro two days ago. tested and NOS. you might want to ask some nice german repair guys and not the crazy vintage ripp off tube dealers in the states....
#14
14th January 2011
Old 14th January 2011
  #14
Lives for gear
 
Joined: Dec 2005
Posts: 3,070

salomonander is offline
Quote:
Originally Posted by Plush View Post
Nope, $2500 is not the price.

Just buy in DE for $100. I know a place that has upwards of 500 NOS AC701K.

No big deal.
no...its not that cheap im afraid. most of them are not usable for mics. so you need to get them tested by someone who knows about the right SN ratios. obviously they get a little more expensive once tested and selected....but the 2 grand figure is way off. around 300 euro is a normal price right now...
#15
16th January 2011
Old 16th January 2011
  #15
Lives for gear
 
Piedpiper's Avatar
 
Joined: Jan 2009
Location: Between the Notes, Iowa
Posts: 3,202

Piedpiper is offline
in case there is still any question, I confirmed with the seller that the $2750 is for 4 tubes.
elambo
Thread Starter
#16
16th January 2011
Old 16th January 2011
  #16
Lives for gear
 
elambo's Avatar
 
Joined: Aug 2004
Location: Up here
Posts: 7,294

Thread Starter
elambo is offline
Quote:
Originally Posted by Piedpiper View Post
in case there is still any question, I confirmed with the seller that the $2750 is for 4 tubes.
Which makes the price-per-tube typical, assuming they're good tubes.

After hearing that several thousands of these tubes still exist I've decided to pass, for now.
#17
16th January 2011
Old 16th January 2011
  #17
Lives for gear
 
Piedpiper's Avatar
 
Joined: Jan 2009
Location: Between the Notes, Iowa
Posts: 3,202

Piedpiper is offline
yup. Although $700 may be typical, they seem to be available for significantly less, although QC is always a question...
elambo
Thread Starter
#18
17th January 2011
Old 17th January 2011
  #18
Lives for gear
 
elambo's Avatar
 
Joined: Aug 2004
Location: Up here
Posts: 7,294

Thread Starter
elambo is offline
Quote:
Originally Posted by Piedpiper View Post
yup. Although $700 may be typical, they seem to be available for significantly less, although QC is always a question...
True. There are two tiers: a) acceptable quality for recording, b) not acceptable quality for recording. There seems to be no shortage of 701s which were originally discarded, but are now being sold as "b" and they might not tell you that up front.
elambo
Thread Starter
#19
3rd March 2011
Old 3rd March 2011
  #19
Lives for gear
 
elambo's Avatar
 
Joined: Aug 2004
Location: Up here
Posts: 7,294

Thread Starter
elambo is offline
Thanks but because there are so many of these around the world, and because they seem to last a long time, and because mine are showing no signs of wear (knock on wood) I've decided to pass on the purchase. But if one starts to fade I'll again start looking.
#20
3rd March 2011
Old 3rd March 2011
  #20
Gear addict
 
Joined: Aug 2007
Location: Montreal
Posts: 314

Le Lab is offline
I paid $500 one year ago, for your info.
elambo
Thread Starter
#21
4th March 2011
Old 4th March 2011
  #21
Lives for gear
 
elambo's Avatar
 
Joined: Aug 2004
Location: Up here
Posts: 7,294

Thread Starter
elambo is offline
I've discovered that great deals can be had.
#22
8th April 2011
Old 8th April 2011
  #22
Gear interested
 
Joined: Mar 2011
Posts: 6

Electrosurplus is offline
no longer for sale (was AC701 NIB, NOS)

Last edited by Electrosurplus; 26th April 2011 at 12:51 PM.. Reason: removed the offer on AC701
#23
1st January 2014
Old 1st January 2014
  #23
Gear interested
 
Joined: Jul 2013
Location: Western PA
Posts: 14

rmburrow is offline
AC701's are going like the Schoeps M221...I am looking for a M221 but refuse to pay inflated price...
Email or write Eurotubes (Eurotubes - Vacuum Tubes by JJ Electronic - ECC83, 12AX7, 6L6. 6L6GC, EL84, EL34, KT77, KT66, KT88) or JJ Electronic (www.jjelectronic.com)...JJ Electronic could probably build the AC701 if they become aware there is a market for this tube even if they charge $100 a pop for them. I ordered two EF806s tubes from them for U67's...they just arrived so I haven't tested them yet.

Make certain the AC701 heater is set for 3.8 to 3.9 volts (dc) at the mic. Test (by substitution) resistors, etc. before blaming the AC701. The AC701 is too expensive to blame before checking the other components first.

The only other alternative is to NEATLY and REVERSIBLY mod the mic for a 7586 nuvistor or a 5703 submini. You then have to mark power supplies so they never get interchanged with AC701 mics.
Quote
1
#24
1st January 2014
Old 1st January 2014
  #24
Lives for gear
 
cinealta's Avatar
 
Joined: Sep 2009
Posts: 3,010

cinealta is offline
Which is exactly why I bought a U67 (with ubiquitous EF86 tube) and not an M269. A couple AC701 tubes & you've bought a new microphone! A mildly out of spec 50 yr old power supply voltage & you shorten the life of those exorbitant tubes. No thanks. I'll just add some high-frequency air-band back to my U67 with an EQ.
Quote
2
#25
2nd January 2014
Old 2nd January 2014
  #25
Lives for gear
 
Joined: Dec 2005
Posts: 3,070

salomonander is offline
yes its really bad with ac701s... hardly any supply. and the little stock that is still around is mostly tubes rejected by neumann and hardly usable. argh....
Quote
1
#26
1 Week Ago
Old 1 Week Ago
  #26
Gear interested
 
Joined: Jul 2013
Location: Western PA
Posts: 14

rmburrow is offline
AC701..

If you have a mic with a AC701, make sure you have the heater voltage adjusted for 3.9 volts AT THE MIC. This means working around HT so be careful. Use small clip leads on the probes to this. Use a good quality digital DC voltmeter for this adjustment! Heater voltage is critical for long life. Always check other components for defects before blaming the AC701.

If you mod a mic to use a 7586 or 5840 or 5703, the heater voltage needs to be raised to 5.6 volts. The NKM or NSM supplies can be modified to do this, and are also easily cloned. I like the way the HT is regulated right off the rectifier with the gas regulator tube (150B2 or rewired to 0A2).. Mark modified supplies so they are never used with a AC701 mic.

Also suggest emailing or contacting JJ Electronic to make a run of AC701's. Good supplies of AC701's may drive the price down to acceptable values...JJ makes a nice EF806..if you order one for a U67, make sure you tell Eurotubes or JJ Electronic it will be used in a mic so you get a quiet one....
Quote
1
#27
1 Week Ago
Old 1 Week Ago
  #27
Lives for gear
 
Silvertone's Avatar
 
Joined: May 2005
Location: Saratoga Springs, NY
Posts: 2,515

Silvertone is offline
Quote:
Originally Posted by salomonander View Post
yes its really bad with ac701s... hardly any supply. and the little stock that is still around is mostly tubes rejected by neumann and hardly usable. argh....
There are close to 10,000 NOS AC701 tube out there. Trouble is they are owned by 2 gentlemen in Europe. They hold onto them to keep the price up there. (roughly 500.00 to 750.00 per tube).

I know the gentleman who bought the original equipment to make the AC701 tubes and had it shipped over from Europe when he moved to US, but he is not "there" yet on setting it up or re-manufacturing these tubes... and he may never be as he'd have to remake more than just the AC701 to make it worth his while and the mans time is very limited as it is.
__________________
------------------------------------------------
Silvertone Mastering, Inc.
PO Box 4582
Saratoga Springs, NY 12866
518-581-8141
http://www.silvertonemastering.com
Facebook: https://www.facebook.com/pages/Silve...82560415140525
------------------------------------------------
#28
1 Week Ago
Old 1 Week Ago
  #28
Steven Antoniazzi
 
127Riot's Avatar
 
Joined: Jan 2007
Location: Chicago
Posts: 339

127Riot is online now
Here they are for $500

elambo
Thread Starter
#29
1 Week Ago
Old 1 Week Ago
  #29
Lives for gear
 
elambo's Avatar
 
Joined: Aug 2004
Location: Up here
Posts: 7,294

Thread Starter
elambo is offline
Quote:
Originally Posted by 127Riot View Post
If they were $2700 I would loose interest in the mic that requires such an expensive tube, the link below is NOS on eBay for approx, $500 obo.

Telefunken AC701 Tube for Vintage Telefunken Neumann Schoeps Microphones | eBay
You might want to read the entire thread which elaborates on actual prices (not the package deal which started the thread), TRUE availability, likelihood that the tubes are garbage or even fake, etc.

To put this thread to rest, I had my KM54 fitted with a NOS 701 several months ago and the price was in the $500-700 ballpark. Not thousands. Not $100 (it's a legitimate 701, in proper working condition, suitable for a quiet microphone).

I hope those two Europeans who are holding ~1,000 AC701s in order to force the prices up lose theirs shirts in the process. I've watched it happen to so many gear collectors who artificially jacked up vintage prices only to have a 'valid' reissue, or some other way to obtain the product at low prices, slice their inflated profits down to nothing.

Now if only we could find a few "gentlemen" hoarding VF14s. That would be something.
#30
1 Week Ago
Old 1 Week Ago
  #30
Lives for gear
 
nickelironsteel's Avatar
 
Joined: Jul 2012
Posts: 2,275

nickelironsteel is online now
Talked to a guy hoarding more vf14 than i dare say

And yes he retired a while ago
New Reply Submit Thread to Facebook Facebook  Submit Thread to Twitter Twitter  Submit Thread to LinkedIn LinkedIn  Submit Thread to Google+ Google+ 
 
Thread Tools
Search this Thread
Search this Thread:

Advanced Search
Similar Threads
Thread
Thread Starter / Forum
Replies
seaneldon / Gearslutz Secondhand Gear Classifieds
0
bace / Geekslutz forum
1
BOWIE / Gearslutz Secondhand Gear Classifieds
11
wrigley / Geekslutz forum
14
studio150 / Gearslutz Secondhand Gear Classifieds
0

Forum Jump

SEO by vBSEO ©2011, Crawlability, Inc.