Twin Tube GFX-1

[MarshallJMP]

Ok thanks, it has been bugging me for days now, I really hope we can get it fixed  :thumb-up:

[bunkyloo]

Well I sold it on Ebay as is and fully disclosed. I did get it cheap and we know why now . Well we tried and thanks MJMP as always sometimes its not worth it.
Steve.

[MarshallJMP]

Too bad we couldn't figure out the problem.

[bunkyloo]

Agreed but I feel more problems on the rise HAHA.

[riccafender]

Thank you very much "Sparker".........I'm so happy. Now with the schematic i think i
will made something to my gfx-1 to try to repare.
The failure is not so critical: it don't' work when i turn it on.
I wait a minute or 45 seconds and it work.
I can't see the led for input signal for 45 seconds and after that, it start to work in a right way.
I think is a capacitor......the unit have 25 years.......and i think the dielectric capacitor can lost their functionality.
I will send news to you to undersant what i have discovered.

Thank you from ITALY!!!!!
Riccardo.

[Iperfungus]

Thank you very much "Sparker".........I'm so happy. Now with the schematic i think i
will made something to my gfx-1 to try to repare.
The failure is not so critical: it don't' work when i turn it on.
I wait a minute or 45 seconds and it work.
I can't see the led for input signal for 45 seconds and after that, it start to work in a right way.
I think is a capacitor......the unit have 25 years.......and i think the dielectric capacitor can lost their functionality.
I will send news to you to undersant what i have discovered.

Thank you from ITALY!!!!!
Riccardo.

Hi Riccardo!
Max from Italy here.
Where are you from?

Welcome to the Depot! 

I still own my GFX-1, where I fixed some minor issues with internal battery and that still sounds in awesome way.
It looks you've all the experience and competences to fix your Twin Tube by yourself, but, in case you would need some support, I've a good friend who knows where put hands (I sold him another GFX-1 with issues that he restored and bring back to (new) life)!
You can read the whole story back in this thread.

For your reference, in case you need to change the internal battery:


https://www.amazon.com/Exell-Battery-A21PX-4-5-Volt-Alkaline/dp/B00FED2M9K/ref=sr_1_1?crid=13GKP1KG5BBC4&dib=eyJ2IjoiMSJ9.POS-WiuVFvx_Ju0LpHIUptS4uC5gXO0_IM0QOlcQJ5gZtv1TI4zjcwE16itWotdS.1kmE6i-0olJfO6GhW-_NENeyO5Pj47IzjB9JWrgVyQY&dib_tag=se&keywords=exell+battery+a21px+4.5-volt+alkaline+battery+white&qid=1709907024&sprefix=exell+a21%2Caps%2C226&sr=8-1


If you did it not yet, have a look to battery as well, to be sure acid did not damage the holder if it's exausted, eventually: the battery holder is harder to find than battery, today.

Just let us know how it's going and post some information and pictures of that repairing job, if you've time!

[Dante]

Look at all the Paesanos!

[rnolan]

Look at all the Paesanos!

our Italian friends are back.

[Iperfungus]

Look at all the Paesanos!

our Italian friends are back.

Italians do it better, do not forget guys!  :green-banana-smiley-emoticon:

[Harley Hexxe]

Italians do it better, do not forget guys!  :green-banana-smiley-emoticon:

And yet so modest  :

[Iperfungus]

Italians do it better, do not forget guys!  :green-banana-smiley-emoticon:

And yet so modest  :

Shit yeah.  :lol: :lol: :lol:

[Harley Hexxe]

Italians do it better, do not forget guys!  :green-banana-smiley-emoticon:

And yet so modest  :

Shit yeah.  :lol: :lol: :lol:

UH-huh. And if you believe that, then I've got some lakefront property in Arizona I'll sell you REAL cheap!  :lol: :lol: :lol:

[Dante]

Italians do it better, do not forget guys!  :green-banana-smiley-emoticon:

And yet so modest  :

Shit yeah.  :lol: :lol: :lol:

UH-huh. And if you believe that, then I've got some lakefront property in Arizona I'll sell you REAL cheap!  :lol: :lol: :lol:

I didn't know they had a lake in Arizona  :

[Harley Hexxe]

Well of course, Lake Havasu. (Where London Bridge is currently located). 

[Iperfungus]

Well of course, Lake Havasu. (Where London Bridge is currently located). 

Am I loosing something here?  :lol: