TEAC AN-180 noise reduction/Dolby unit. - UK Vintage Radio Repair and Restoration Discussion Forum

Kentode · 5th Jul 2023, 9:03 pm

I had a lot of fun with this when I had an Akai GX 4000D, but now it's time for someone else to enjoy it.

It's got the power lead and a photocopy of the manual, the VU meters are working and the VU and DOLBY lamps all light up when required.

£40 plus p&p.

I'll let this run until the weekend, hat if required.

Reelman · 5th Jul 2023, 10:01 pm

Hi Ken,

Would there have been a calibration tape and or cassette to go with this?

Peter

Uncle Bulgaria · 5th Jul 2023, 10:44 pm

That sounds great fun! Please put me in the hat.

mickyfinn · 6th Jul 2023, 7:25 am

Can I please also go in the hat?Thanks a lot
Mick

Kentode · 6th Jul 2023, 9:13 am

Quote:

Originally Posted by Reelman

Hi Ken,

Would there have been a calibration tape and or cassette to go with this?

Peter

The third picture is a bit poor, there's a calibration button on the back.

Uncle B and Mick, you're in the hat.

Reelman · 7th Jul 2023, 10:35 am

On checking the manual available from Hi-Fi Engine a calibration tape and cassette were supplied. These are required to set the correct playback level….

1. REC CAL TONE:
This switch is used only during the Record Calibration procedure of the Dolby
System. It feeds a 400Kz tone from an oscillator in the Model AN-180 to your tape recorder.

4.PLAY CAL:
These controls are used only during the Playback Calibration.
Note: For playback calibration use only
TEAC YTT-5001 (open r e e l )
and MIT-112B (cassette) Dolby level test tape. Use of other tapes will result in inaccurate calibration. The TEA test tape YTT-5001
(open reel) and MTT-112B(cassette) represents the standard Dolby level used in all Dolby
Systems. It is the level standard used to calibrate your entire recording system. Treat this tape with respect. Do not expose it to strong magnetic fields such as the transformers of your equipment, head or bulk demagnetizers or speaker magnets. Exposure to strong magnetic fields may result in partial demagnetization with a subsequent standard level change.

No doubt without them an approximation can be made.

I’m still tempted though…

Peter

Kentode · 7th Jul 2023, 3:37 pm

Are you in or out Peter? The hat needs to know...

Stellar · 7th Jul 2023, 4:56 pm

Hi Ken
If not to late can you put me in the hat
Thanks
Simon

Reelman · 7th Jul 2023, 6:36 pm

Quote:

Originally Posted by Kentode

Are you in or out Peter? The hat needs to know...

Sorry to be be initially unclear Ken. I’ve got the WW version so I’ll let the others have a better chance! Please don’t include me in the hat but good luck to all the participants. It’s well worth having.

Peter

Kentode · 9th Jul 2023, 6:40 pm

And the winner is... mickyfinn!

Please let me know your address via PM and I'll take it to the post office on Monday.

mickyfinn · 9th Jul 2023, 6:46 pm

Oh great!Many thanks Ken.Will send a PM now.
Mick

Uncle Bulgaria · 9th Jul 2023, 8:36 pm

Hey ho, you can't win them all. Have fun Mick!

Kentode · 9th Jul 2023, 8:41 pm

Quote:

Originally Posted by Uncle Bulgaria

Hey ho, you can't win them all. Have fun Mick!

Your turn will come, Uncle B, the hat told me so...

5th Jul 2023, 9:03 pm	#1
Kentode Octode Join Date: Mar 2015 Location: Yorkshire, England. Posts: 1,303	TEAC AN-180 noise reduction/Dolby unit. I had a lot of fun with this when I had an Akai GX 4000D, but now it's time for someone else to enjoy it. It's got the power lead and a photocopy of the manual, the VU meters are working and the VU and DOLBY lamps all light up when required. £40 plus p&p. I'll let this run until the weekend, hat if required. Attached Thumbnails __________________ Regards, Ken. BVWS member

5th Jul 2023, 10:01 pm	#2
Reelman Octode Join Date: Aug 2008 Location: Rotherham, South Yorkshire, UK. Posts: 1,726	Re: TEAC AN-180 noise reduction/Dolby unit. Hi Ken, Would there have been a calibration tape and or cassette to go with this? Peter

5th Jul 2023, 10:44 pm	#3
Uncle Bulgaria Nonode Join Date: May 2016 Location: Cornwall, UK. Posts: 2,342	Re: TEAC AN-180 noise reduction/Dolby unit. That sounds great fun! Please put me in the hat.

6th Jul 2023, 7:25 am	#4
mickyfinn Hexode Join Date: Dec 2014 Location: Scarborough, North Yorkshire, UK. Posts: 473	Re: TEAC AN-180 noise reduction/Dolby unit. Can I please also go in the hat?Thanks a lot Mick

7th Jul 2023, 10:35 am	#6
Reelman Octode Join Date: Aug 2008 Location: Rotherham, South Yorkshire, UK. Posts: 1,726	Re: TEAC AN-180 noise reduction/Dolby unit. On checking the manual available from Hi-Fi Engine a calibration tape and cassette were supplied. These are required to set the correct playback level…. 1. REC CAL TONE: This switch is used only during the Record Calibration procedure of the Dolby System. It feeds a 400Kz tone from an oscillator in the Model AN-180 to your tape recorder. 4.PLAY CAL: These controls are used only during the Playback Calibration. Note: For playback calibration use only TEAC YTT-5001 (open r e e l ) and MIT-112B (cassette) Dolby level test tape. Use of other tapes will result in inaccurate calibration. The TEA test tape YTT-5001 (open reel) and MTT-112B(cassette) represents the standard Dolby level used in all Dolby Systems. It is the level standard used to calibrate your entire recording system. Treat this tape with respect. Do not expose it to strong magnetic fields such as the transformers of your equipment, head or bulk demagnetizers or speaker magnets. Exposure to strong magnetic fields may result in partial demagnetization with a subsequent standard level change. No doubt without them an approximation can be made. I’m still tempted though… Peter

7th Jul 2023, 3:37 pm	#7
Kentode Octode Join Date: Mar 2015 Location: Yorkshire, England. Posts: 1,303	Re: TEAC AN-180 noise reduction/Dolby unit. Are you in or out Peter? The hat needs to know... __________________ Regards, Ken. BVWS member

7th Jul 2023, 4:56 pm	#8
Stellar Pentode Join Date: Feb 2016 Location: Audlem, Cheshire East, UK. Posts: 183	Re: TEAC AN-180 noise reduction/Dolby unit. Hi Ken If not to late can you put me in the hat Thanks Simon

9th Jul 2023, 6:40 pm	#10
Kentode Octode Join Date: Mar 2015 Location: Yorkshire, England. Posts: 1,303	Re: TEAC AN-180 noise reduction/Dolby unit. And the winner is... mickyfinn! Please let me know your address via PM and I'll take it to the post office on Monday. Attached Thumbnails __________________ Regards, Ken. BVWS member

9th Jul 2023, 6:46 pm	#11
mickyfinn Hexode Join Date: Dec 2014 Location: Scarborough, North Yorkshire, UK. Posts: 473	Re: TEAC AN-180 noise reduction/Dolby unit. Oh great!Many thanks Ken.Will send a PM now. Mick

9th Jul 2023, 8:36 pm	#12
Uncle Bulgaria Nonode Join Date: May 2016 Location: Cornwall, UK. Posts: 2,342	Re: TEAC AN-180 noise reduction/Dolby unit. Hey ho, you can't win them all. Have fun Mick!