Gone, but not forgotten
Location: Central England
Posts: 2,932
Despite being a fully-converted tube user I cannot help but think that this is not going to be a good thing. A Warm and woolly sounding ss amp that still has a little grain and sat-on dynamics is what I'm imagining here. I could be wrong of course.The fun is that it has the character of a tube circuit!
Trade: Hawk Audio
Location: Ledegem Belgium
Posts: 86
warm & woolly
Dear SteveOriginally Posted by Steve Toy
"Warm & Woolly" is NOT how I would describe a good tube amp. Such amps produce an "open" and widespaced sound and, having a large bandwidth, such tube amps perform best in the upper octaves without any harshness.
A difference when measuring is that a lot of "solid state" stuff show ever increasing distorsion when the frequency goes up. Tube amps (again the good ones) show a steady level of distortion even at frequencies over 100 kHz.
The mentioned A-18 power amp shows the same "character" as the latter. So a lot of users compare this with the "tube sound" it reminds them of.
John
Music is an emotional experience. Without it, living would be a dull habit...
Site Owner/Administrator
Location: Wrexham, North Wales, UK
Posts: 110,012
I'm AudioAl'sArbiterForPISHANTO.
If I may say, John, that was a most succinct summary of the joys of thermionic sonic reproduction
Marco.
Main System
Turntable: Heavily-modified Technics SL-1210MK5G [Mike New bearing/ETP platter/Paul Hynes SR7 PSU & reg mods]. Funk Firm APM Achromat/Nagaoka GL-601 Crystal Record Weight/Isonoe feet & boots/Ortofon RS-212D/Denon DL-103GL in Denon PCL-300 headshell with Funk Firm Houdini/Kondo SL-115 pure-silver cartridge leads.
Paul Hynes MC head amp/SR5 PSU. Also modded Lentek head amp/Denon AU-310 SUT.
Other Cartridges: Nippon Columbia (NOS 1987) Denon DL-103. USA-made Shure SC35C with NOS stylus. Goldring G820 with NOS stylus. Shure M55E with NOS stylus.
CD Player: Audiocom-modified Sony X-777ES/DAS-R1 DAC.
Tape Deck: Tandberg TCD 310, fully restored and recalibrated as new, by RDE, plus upgraded with heads from the TCD-420a. Also with matching TM4 Norway microphones.
Preamps: Heavily-modified Croft Charisma-X. LDR Stereo Coffee. Power Amps: Tube Distinctions Copper Amp fitted with Tungsol KT-150s. Quad 306.
Cables & Sundries: Mark Grant HDX1 interconnects and digital coaxial cable, plus Mark Grant 6mm UP-LCOFC Van Damme speaker cable. MCRU 'Ultimate' mains leads. Lehmann clone headphone amp with vintage Koss PRO-4AAA headphones.
Tube Distinctions digital noise filter. VPI HW16.5 record cleaning machine.
Speakers: Tannoy 15MGs in Lockwood cabinets with modified crossovers. 1967 Celestion Ditton 15.
Protect your HUMAN RIGHTS and REFUSE ANY *MANDATORY* VACCINE FOR COVID-19!
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Trade: Hawk Audio
Location: Ledegem Belgium
Posts: 86
Well, well, well ........ a succinct thermionic summary.
I already had a headache this morning. So thanks Marco.
John
Music is an emotional experience. Without it, living would be a dull habit...
New Member
Location: Norway
Posts: 9
I'm Rune.
Hi John!
Exiting news I`d say!!
Can I ask a little bit more about witch patent we are talking about? However,I have no problem atatched to it,if you dont want to,but this is a informative thing to know for all of us who are fond of Tandberg .
Regards Rune
Trade: Hawk Audio
Location: Ledegem Belgium
Posts: 86
The patented circuit was used by Tandberg and Studer/Revox. They had a legal fight over it for some years.
In principle it's a circuit with 4 transistors, kind of symmetrical, all transistors with local feed back so there's no need for overall feed back.
We used it in several designs and perfected it a bit by adding CCS and current mirrors.
John
Music is an emotional experience. Without it, living would be a dull habit...
Moderator
Location: North Down /Northern Ireland/ UK
Posts: 19,484
I'm Neil.
What an amazing collection of equipment this guy had/has? Its a real shame he didn't stick around, 7 posts is not much of a contribution but the photos he posted are very interesting to look at and as such are a big contribution.
I wasn't around at the time so was unable to welcome him to AOS.
The mysteries of why some come and go and others stay.....such is the life of a forum.
Regards D S D L
Regards Neil
Banned
Location: Lancaster(-ish), UK
Posts: 16,937
I'm ChrisB.
Quite some stack of stuff, eh? It's quite a collection, spanning the whole of Tandberg's history by the look of it.
Member
Location: East yorkshire uk
Posts: 32
I'm Ron.
Hello All.
I have chance of a Tandberg Stereo Tr220,and Tl15 speaker`s,Record deck,
and a cassette player for £20 should i go for it ?or give it a miss?
Thank`s in antisipation,
Ron
Administrator / Magnetic Tape Person
Location: Bristol, UK
Posts: 9,962
I'm Nick.
Ron,
I was given a TR220 a while back, and they look nice, though very big for a music centre. The turntable is a spring suspended Dual. To be honest it's not remarkable - the turntable is quite noisy and the tape deck pretty basic. The TR220 was real budget fare for Tandberg. It's nowhere near the peak of their products; the 3014-A tape deck et al.
I gave my TR220 away... Due to it's size it's not even the kind of thing you can enjoy as a museum piece.
Sorry, but I wouldn't want you succumbing to the allure of the Tandberg brand for that particular model - like I did
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