Graaf GM20 OTL power amplifier. Working, but needs TLC.
End: 04.09. 2023 18:24:18 on Monday
- Condition: For parts or not working
- Price: 1080.57 EUR
- Status: sold
- Item number: 295905334284
- Bids: 11
- Seller: alnwick2002 (594|100.0%)
- Seller information: non commercial
- Item location: Bedlington
- Ships to: GB
- Shipping: 25,0 EUR
- on EBAY
-
Description
My Graaf GM20 OTL power amplifier. If youre looking at this you probably know all about these.... I bought this a couple of years ago and have used it regularly, with the ultimate plan of restoring and upgrading it. It sounds like no other amplifier Ive ever owned.... It is almost scary in the detail (and incredible bass response) it produces. Its only 20 watts per channel, but it produces a sound that completely belies this! It had been (pretty clumsily) modified when I bought it. It has two large led meters attached which show the bias (very useful, but a bit ugly), and the bias and offset pots have been moved, with their shafts protruding from the sides of the chassis (again this is useful, but a bit ugly!). It also had a number of fans added under the chassis and in the upper cage, which I removed as the noise was so irritating! The main issue is that the original bespoke valve holders (and the pcb) have suffered badly from the heat of the 6C33C output valves. I purchased a set of ceramic (Russian NOS) valveholders with the intention of upgrading the pcb using copper bars (as in later versions of the GM20) and installing the new valveholders on stand-offs as a permanent fix. It works and sounds great as it is, but the original valveholders are a constant problem due to them being charred. The intermittent contacts need constant attention. I love this thing..... It sounds utterly amazing when everything is just right, but Ive never got round to doing the work it needs to make it completely reliable. A good strip-down and some careful rebuilding would make it 100%. I just dont have the time now. Im including the valveholders and also three new spare PSU capacitors I bought along the way. Believe me, even in its current state it sounds fabulous and with some care and attention it will be even better, and more stable! Im happy to demo if you wish. Why am I selling this? Im getting too old and lazy is the real reason, but every time I listen to it I want to keep it! It is monumentally heavy, so collection is preferred. If shipping is chosen please be assured that it will be extremely well packed.
Graaf GM20b stereo valve amplifier | boxed with user guide | ideal audio
End: 27.08. 2023 16:55:00 on Sunday
100 Vakuumröhren EF184 / 6EJ7 Philips Graaf GM20 Futterman Amp Aitos
End: 29.08. 2021 16:39:39 on Sunday
- Condition: New
- Price: 235.98 EUR
- Status: sold
- Item number: 164856378101
- Counter: 289
- Seller: radioveio (749|97.5%)
- Seller information: Commercial (with base shop)
- Item location: Penapolis
- Ships to: Europe
- Shipping: 41,1 EUR
- on EBAY
Graaf GM20 OTL Power amplifier
End: 07.07. 2021 21:01:16 on Wednesday
- Condition: Used
- Price: 2685.56 EUR
- Status: unsold
- Item number: 133800634045
- Counter: 233
- Bids: 0
- Seller: cjy55 (429|100.0%)
- Seller information: non commercial
- Item location: Peterborough
- Ships to: None
- Shipping: 0,0 EUR
- on EBAY
Graaf GM20 GM 20 OTL Tube Amplifier New State MIND Condition
End: 08.05. 2021 11:52:39 on Saturday
- Condition: Used
- Price: 1849.0 EUR
- Status: sold
- Item number: 333983282148
- Counter: 124
- Bids: 1
- Seller: joey_donker_nl (3|80.0%)
- Seller information: non commercial
- Item location: Rotterdam
- Ships to: Worldwide
- Shipping: 25,0 EUR
- on EBAY
GRAAF GM20 OTL VALVE POWER AMPLIFIER
End: 23.05. 2019 22:55:21 on Thursday
- Condition: Used
- Price: 1597.98 EUR
- Status: sold
- Item number: 143250661940
- Counter: 454
- Bids: 6
- Seller: kc9186 (365|100.0%)
- Seller information: non commercial
- Item location: Lymm
- Ships to: GB
- Shipping: 20,5 EUR
- on EBAY
Graaf GM20 OTl 20 watt valve power amp
End: 06.05. 2018 15:11:31 on Sunday
- Condition: Used
- Price: 2290.28 EUR
- Status: sold
- Item number: 253498428549
- Counter: 1327
- Seller: emporiumhifi (6789|99.6%)
- Seller information: Commercial
- Item location: Bungay
- Ships to: Europe
- Shipping: 45,34 EUR
- on EBAY
Telefunken EF184 = 6EJ7 matched quad 4 pcs. AVO tested NOS NIB (for Graaf GM20)
End: 20.01. 2018 12:11:15 on Saturday
- Condition: New
- Price: 120.59 EUR
- Status: sold
- Item number: 112643765570
- Seller: rappi62 (1318|100.0%)
- Seller information: non commercial
- Item location: Kelkheim
- Ships to: Americas
- Shipping: 11,02 EUR
- on EBAY
GRAAF GM20- 2x GM20 als MONO oder BI-AMPING
End: 30.03. 2016 22:59:10 on Wednesday
- Condition: Used
- Price: 2520.0 EUR
- Status: sold
- Item number: 381574904758
- Counter: 493
- Bids: 25
- Seller: blubbfisch123 (337|100.0%)
- Seller information: non commercial
- Item location: Berlin
- Ships to: DE
- Shipping: 50,0 EUR
- on EBAY
Kendeil Capacitor K01 200472 for Graaf GM20 or similar
End: 17.01. 2016 20:20:01 on Sunday
- Condition: New
- Price: 26.13 EUR
- Status: sold
- Item number: 401043623900
- Counter: 151
- Seller: mauro7762 (883|100.0%)
- Seller information: non commercial
- Item location: London
- Ships to: Worldwide
- Shipping: 5,0 EUR
- on EBAY
Graaf GM20 OTL amplificatore valvolare come nuovo
End: 07.09. 2014 16:20:34 on Sunday
- Condition: Used
- Price: 2200.0 EUR
- Status: sold
- Item number: 201160148783
- Counter: 90
- Seller: raphaelg45 (299|100.0%)
- Seller information: non commercial
- Item location: Acilia
- Ships to: IT
- Shipping: 20,0 EUR
- on EBAY
GRAAF GM20 OTL stereo power amplifier, valve, pre-owned, serviced
End: 14.02. 2014 23:18:26 on Friday
- Condition: Used
- Price: 1791.01 EUR
- Status: sold
- Item number: 131111938408
- Counter: 502
- Seller: oxfordaudio (633|100.0%)
- Seller information: Commercial
- Item location: Oxford, Oxfordshire
- Ships to: Worldwide
- Shipping: 78,02 EUR
- on EBAY
GRAAF GM200 Tube Power AMPLIFIERS 200W OTL (100V-240V)
End: 01.03. 2013 14:28:23 on Friday
- Condition: Used
- Price: 1799.68 EUR
- Status: sold
- Item number: 170997224174
- Counter: 188
- Bids: 34
- Seller: 46a1brev (0|0.0%)
- Seller information: non commercial
- Item location: Cheyenne, WY
- Ships to: Worldwide
- Shipping: 57,17 EUR
- on EBAY
Röhre 6C33C used about 50 hours zB f Graaf GM20
End: 03.01. 2012 02:59:09 on Tuesday
- Condition: New
- Price: 9,5 EUR
- Status: sold
- Item number: 220919534003
- Bids: 4
- Seller: einfachnurheinz (254|10000%)
- Seller information: non commercial
- Item location: Prien
- Ships to: Weltweit
- Shipping: 6,9 EUR
- on EBAY
Röhre 6C33C NEU ungenutzt zB f Graaf GM20
End: 03.01. 2012 02:55:11 on Tuesday
- Condition: New
- Price: 8,5 EUR
- Status: sold
- Item number: 220919532797
- Bids: 4
- Seller: einfachnurheinz (254|10000%)
- Seller information: non commercial
- Item location: Prien
- Ships to: Weltweit
- Shipping: 6,9 EUR
- on EBAY
Röhre 6C33C NEU ungenutzt zB f Graaf GM20
End: 03.01. 2012 02:53:20 on Tuesday
- Condition: New
- Price: 10,51 EUR
- Status: sold
- Item number: 220919532026
- Bids: 4
- Seller: einfachnurheinz (254|10000%)
- Seller information: non commercial
- Item location: Prien
- Ships to: Weltweit
- Shipping: 6,9 EUR
- on EBAY
Live search