Anyone ever owned/seen one of these?

Original Burnedfingers · 23rd August 2003, 05:42 PM

I recently purchased this Soundstage line amp. It has vacuum two as a model? It has 2) 6922 tubes in it and seems to put out unity gain. I can't seem to find anything on the web about it. Any information would be appreciated.

Original Burnedfingers · 23rd August 2003, 05:46 PM

another picture

Original Burnedfingers · 23rd August 2003, 05:47 PM

and another

Sch3mat1c · 23rd August 2003, 06:48 PM

Trace the circuit. I wouldn't doubt it if it's like that common 5687 gainstage, or maybe a CF instead (but then you'd notice <unity gain).

Tim

zxx123 · 23rd August 2003, 08:30 PM

6bm8 and Super Triad Connection with some TR, I think.

fdegrove · 23rd August 2003, 11:39 PM

Hi,

Joe,

On the last pic you posted I think I see HK on the label. HK is a postal code for Hong Kong.

Vacuum Hybrid Booster sounds Asian marketing to me as well...
If the thing is yours, open it and try to figure out the hybrid part.

It surprises me, given the above, that it has no gain though.

Cheers,

Original Burnedfingers · 24th August 2003, 02:36 AM

Frank

Yup this thing is mine. I took a look inside despite comments from the wife. "Do you have to take everything you buy apart?" With 1 volt input it managed 1.1 volt out. I figure thats close enough for unity on a saturday afternoon. Are there any mosfets inside? No, nothing out of the ordinary except there is only one transformer tap. There is a regulated supply also. How does it sound? Well, it seems to have good bass and high frequency response. I feel the midrange is somewhat lacking. I believe I need several more beers and more listening time to tell.

The only marking on the caps seem to be US and several from France.

Joe

r0cket- · 24th August 2003, 03:19 AM

Where did you get it?

I would think the seller would be able to provide some information, but then, possibly not.

It looks like you got a fairly complete package though--anything in the user guide to point you to a website, or describe the circuit?

Original Burnedfingers · 24th August 2003, 12:31 PM

rOcket

The seller wasn't able to provide ANY information on this item. He was my first contact by the way. I haven't been able to find a website either. Therefore I have turned to my fellow tubeites for help.

Joe

telefunken · 24th August 2003, 06:24 PM

is this what you looking for.

soundstage

23rd August 2003, 06:48 PM	#4
Sch3mat1c diyAudio Member Join Date: Jan 2003 Location: Milwaukee, WI	Trace the circuit. I wouldn't doubt it if it's like that common 5687 gainstage, or maybe a CF instead (but then you'd notice <unity gain). Tim __________________ Seven Transistor Labs Projects and Resources

23rd August 2003, 08:30 PM	#5
zxx123 diyAudio Member Join Date: Aug 2003 Location: ca	maybe... 6bm8 and Super Triad Connection with some TR, I think.

23rd August 2003, 11:39 PM	#6
fdegrove diyAudio Senior Member Join Date: Aug 2002 Location: Belgium	Hi, Joe, On the last pic you posted I think I see HK on the label. HK is a postal code for Hong Kong. Vacuum Hybrid Booster sounds Asian marketing to me as well... If the thing is yours, open it and try to figure out the hybrid part. It surprises me, given the above, that it has no gain though. Cheers, __________________ Frank

24th August 2003, 06:24 PM	#10
telefunken diyAudio Member Join Date: Aug 2003 Location: rotterdam	is this what you looking for. soundstage __________________ it's my life

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

24th August 2003, 02:36 AM	#7
Original Burnedfingers diyAudio Member Join Date: Nov 2002	Frank Yup this thing is mine. I took a look inside despite comments from the wife. "Do you have to take everything you buy apart?" With 1 volt input it managed 1.1 volt out. I figure thats close enough for unity on a saturday afternoon. Are there any mosfets inside? No, nothing out of the ordinary except there is only one transformer tap. There is a regulated supply also. How does it sound? Well, it seems to have good bass and high frequency response. I feel the midrange is somewhat lacking. I believe I need several more beers and more listening time to tell. The only marking on the caps seem to be US and several from France. Joe

24th August 2003, 03:19 AM	#8
r0cket- diyAudio Member Join Date: Aug 2003 Location: Portland, OR	Where did you get it? I would think the seller would be able to provide some information, but then, possibly not. It looks like you got a fairly complete package though--anything in the user guide to point you to a website, or describe the circuit?

24th August 2003, 12:31 PM	#9
Original Burnedfingers diyAudio Member Join Date: Nov 2002	rOcket The seller wasn't able to provide ANY information on this item. He was my first contact by the way. I haven't been able to find a website either. Therefore I have turned to my fellow tubeites for help. Joe

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
has anyone here listened, owned, or know a velleman kit form K4020 MOSFET amplifier?	pkgum	Solid State	17	17th February 2008 07:24 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read