What's in your tube rig

[Rex Everything]

I'm still working on recapping a few amps but here is what I have now.

Dynaco ST-70 amp (thanks Broonsbane)
Dynaco PAS-3 preamp
Dynaco FM-3 tuner


I also have a very very cool Jaymanaa(hope to get him to sign up) modded Magnavox console pull that is about to be put into the main system for testing and critical listening.


I'm looking for an orphan Dynaco Mark III and have a Mark II to trade if anyone has one.

Pics coming soon.

[Scorpion8]

I don't have a single piece of heated glass in my systems. I've been searching hi and low at scrounge events here in my neck, but have always come up nada. One time I had a line on an old console but the people stood me up. It's been on my list ...

[vinyldavid]

Well.......only one component of my 3 tube pieces work, but I'll throw them out there anyway...

Heathkit AJ-30 mono tuner working perfectly
Scott 350-B no sound, 2 tubes do not light (this is motly filled with Telefunken diamond plates)
Eico HF-20: Blown rectifier, prolly needs a recap

Probably gonna sell the Heath and get my Scott up and running, and then see about the Eico...

Scott was $45 with shipping, and the Heath and Eico were free....

[Rex Everything]

I don't have a single piece of heated glass in my systems. I've been searching hi and low at scrounge events here in my neck, but have always come up nada. One time I had a line on an old console but the people stood me up. It's been on my list ...

I'll keep ya in mind if anyhting comes up.

[gamve]

Phono stage Trevor Lees "Positive Vibrations"
8 x Phillips Holland 12AX7.
Not using at the moment the power trany was smokin' DOH

Pre amp Home built Job
2 x 5751 Grey plate Sylvanias
2 x Mullard early vesion EL84's
2 x 6x4 rectifiers

Pre Kondo Knock Off
1 x 6x4 rectifier
1 x Philips JAN 5687

Power amp home built job
2 x Brimar 6060 (12AT7 equiv)
4 x 7027A RCA metal base in triode mode

Cheers
G

[niklasthedolphin]

No tubes...............yet.

It is my plan to change my dual mono power amp set from solid state to tubes in time comming.

Considering Atmas-Phere, Transcendent because they are reliable OTL's
Also in consideration is Copland (although they don't have mono sets), Thorhauge, the big VT 130 from Audio Research etc.

I am not yet in the process of testing them all.
Have to save money for the project.

The tube power amps are going to cooperate with Mark Levinson No 38s and ProAc Response D25.
My dream is that one day they will feed Wilson speakers.

"dolph"

[utahusker]

I have a First Gen Juicy Music Blueberry and Nos Valves VRD st45 running KT88s.
Used to own:
Quicksilver Horn Monos
Scott 299A
Dodd ELP preamp

I love the sound of Tubes-N-Horns*reelspin*

[kevinkr]

Almost all tube and nothing with the noted exceptions anyone would recognize unless they are somewhat familiar with my former exploits.. *wave**wave*

Literally everything is homebrew or modified and my own design with some obvious exceptions. I designed and built my speaker system a couple of years ago which are Onken bass cabinets with Iconic woofers and vintage JBL pro horns (4333 mids, 2402 annular ring radiator) on the top end for use with my relatively low powered 300B dht SE amplifier. I'm on my second iteration of X-O which is nothing exotic using all butterworth 2nd order (12dB/Oct) networks - I kinda f'd up on the first version of the X-O, but it still managed to sound pretty good.

The amplifier is a two chassis affair with audio on one chassis and fully regulated tube based supplies on the other. Tubes in the audio path per channel are a single 6J5G, 6SN7GTA, and JJ 300B. I use fixed bias at 75mA/400V and output power is right around 8Wrms per channel.

The line stage is transformer coupled with a single fix biased 26 dht per channel and regulated supplies.

I have a phono stage using Lipshitz based passive eq and a single triode connected D3A and 5842 per channel. Active loads are employed (5687 based gyrators) and it has sufficient gain and low enough noise to be used with fairly low output mc type cartridges - about 50dB of gain, noise referred to the input is about 2nVrtHz. It's very quiet except when it breaks.. *dammit* Power supply is also on a separate chassis and is fully regulated and tube based. The line stage has less than 4dB of gain so I use a high output Grado Reference Platinum MM cartridge which provides me with adequate levels under all conditions.

PCM sources are a homebrew media server, transport based on Peter Daniel's Shigaclone, and a dac incorporating some odds and ends from Twisted Pear Audio with some of my stuff. I also have a heavily modified Sony SACD player.

I have the G36 ReVox with new half track heads, and a fair number of modifications to the electronics. I plan to design a new passively equalized tape playback amplifier sometime in the next year or so.

Also have a very nice Otari MX-55-T-M, a restored Thorens TD-125MKI TT, and tuners include a recapped Mitsubishi DA-F10 (SS) a modified Fisher FM-50B, and modified McIntosh MR-71.

I can't leave anything alone.. *yip*

My old site at http://www.kta-hifi.net explains some of this madness..

[niklasthedolphin]

Almost all tube and nothing with the noted exceptions anyone would recognize unless they are somewhat familiar with my former exploits.. *wave**wave*

Literally everything is homebrew or modified and my own design with some obvious exceptions. I designed and built my speaker system a couple of years ago which are Onken bass cabinets with Iconic woofers and vintage JBL pro horns (4333 mids, 2402 annular ring radiator) on the top end for use with my relatively low powered 300B dht SE amplifier. I'm on my second iteration of X-O which is nothing exotic using all butterworth 2nd order (12dB/Oct) networks - I kinda f'd up on the first version of the X-O, but it still managed to sound pretty good.

The amplifier is a two chassis affair with audio on one chassis and fully regulated tube based supplies on the other. Tubes in the audio path per channel are a single 6J5G, 6SN7GTA, and JJ 300B. I use fixed bias at 75mA/400V and output power is right around 8Wrms per channel.

The line stage is transformer coupled with a single fix biased 26 dht per channel and regulated supplies.

I have a phono stage using Lipshitz based passive eq and a single triode connected D3A and 5842 per channel. Active loads are employed (5687 based gyrators) and it has sufficient gain and low enough noise to be used with fairly low output mc type cartridges - about 50dB of gain, noise referred to the input is about 2nVrtHz. It's very quiet except when it breaks.. *dammit* Power supply is also on a separate chassis and is fully regulated and tube based. The line stage has less than 4dB of gain so I use a high output Grado Reference Platinum MM cartridge which provides me with adequate levels under all conditions.

PCM sources are a homebrew media server, transport based on Peter Daniel's Shigaclone, and a dac incorporating some odds and ends from Twisted Pear Audio with some of my stuff. I also have a heavily modified Sony SACD player.

I have the G36 ReVox with new half track heads, and a fair number of modifications to the electronics. I plan to design a new passively equalized tape playback amplifier sometime in the next year or so.

Also have a very nice Otari MX-55-T-M, a restored Thorens TD-125MKI TT, and tuners include a recapped Mitsubishi DA-F10 (SS) a modified Fisher FM-50B, and modified McIntosh MR-71.

I can't leave anything alone.. *yip*

My old site at http://www.kta-hifi.net explains some of this madness..

You're the kind of fantastic guy, who should consider building your own DIY R2R tape recorder, Cassette deck and even digital hard disc recorder (purely sound).

Give it a go!!

"dolph"

[toober]

Hi all, right now I'm experimenting with bi-amping. I accidentally came upon an old Magnavox bi-amp unit that runs 6V6 pp for the low frequencies, and 6V6 SE for the upper registers. I did a quick re-cap on it, changed a few resistors to let it go a little lower, and stuck it in my horn rig. I was absolutely pleased with the result. Anyone who's ever played around with low powered horns knows how frustrating the crossovers can be, but doing it with the amps seems to make things a little easier. I just recently purchased a Behringer electronic crossover that I can use to try different amps with. I have several combinations to try (mostly homebrew stuff), I just need to find some time. That's the main system, but in my shop I have fairly pitiful looking (but great sounding) little Stromberg Carlson Stereo 24, powering some modified JBL 4301 monitors. Good to see some familiar faces here.

[hakka26]

Got tubes but no place to put them yet.:(

Sansui 1000A Receiver
Harmon Kardon A-700 Amp
Sherwood S-5000II Int. Amp
Sherwood 2200 Tuner
Bigg of California Stereomaster Pre
Bigg of California Tuner
Couple of console amps.

[Doug_Olitsky]

Fisher 400 receiver
McIntosh MC2102 amp
DRD 300b mono amps
Mapletree Audio Triplex pre
Counterpoint SA-1000 pre
Joule-Electra LA-100 Mk II pre
Copland CTA-505 amp

[kevinkr]

Hi Dolph,
Thanks for the kind words and encouragement. Long ago I built a transistorized stereo cassette player, and more recently a media server. I'm rebuilding a ReVox G36 currently - have installed new half track stereo heads, awaiting a half track erase head. The plan here is new replay electronics first based on 5842, D3A, and perhaps the 5687. Perhaps later I will also redesign the record electronics. My design approach is to emphasize linearity without resorting to the use of anything more than local feedback, and often not even that. I generally tend to prefer the sound of tubes, but do have a fair amount of SS gear I've designed and built or modded over the last year or so.

[niklasthedolphin]

Fisher 400 receiver
McIntosh MC2102 amp
DRD 300b mono amps
Mapletree Audio Triplex pre
Counterpoint SA-1000 pre
Joule-Electra LA-100 Mk II pre
Copland CTA-505 amp

I kind of like the way your Copland communicates.
Great piece.

"dolph"

[Doug_Olitsky]

Thanks! My Copland is now a great amp.

It had significant design issues and was always blowing output tubes.

Not it is heavily modified and sounds great.

-coupling caps value changed and now Audio Research issued Infini-Caps
-triode switch bypassed into pentode mode
-tube grid fuses defeated and mills 1 ohm resistors in their place
-power supply modified

it now runs w/ orange globe amperex input tubes and GE 6550A outputs