Amp Guts Photos - Official Thread - Lets see those pics

[Passinwind]

These are actually some of the same DIY amp guts I posted upthread, but in a new case and with a Jensen DI transformer and some connector upgrades added:

 

[Snaxster]

So i am starting the Amp Guts thread.. If anyone has pics of the inside of their rigs...
SPEAKERS ,Preamps, Power amps OK too.. Just has to be the inside, under the hood pic
Post them here.. Home projects are welcome too..

It's a huge pedal and it's a tiny amp.

Gjika Mini Amp

 

[60bass]

It's a huge pedal and it's a tiny amp.

Gjika Mini Amp

View attachment 966720

How does that speaker sound with a low B?

 

[beans-on-toast]

The speaker is mounted on a plate, must be for metal.

 

[Snaxster]

How does that speaker sound with a low B?

The speaker is mounted on plate, must be for metal.

Used as either a drive pedal or a preamp into a full-size amp rig, the Gjika Mini Amp sounds quite good with bass guitar. Played with bass, it sounds 100% of tube audio, having slow, somewhat muddy low end, and really nice articulation. Its higher gain drive sounds are beautiful. Supposedly it is a killer with guitar.

 

[Snaxster]

18 watts of a little bit of cathode biased tube roller's heaven with a master volume control.

2010 Frugal Amps conversion of a 1962 Hammond model H-AO-39-1 amp to a Marshall Lite IIb circuit

 

[Snaxster]

Glockenklang Blue Rock

 

[tombowlus]

That's why they are so dead silent. Nice isolation and shielding inside.

 

[agedhorse]

That's why they are so dead silent. Nice isolation and shielding inside.

You do know that there are two ways of dealing with this kind of noise... shielding or designing the circuit to minimize the generation of the noise to begin with, thus eliminating entirely the need for a shield.

 

[Jeff Bonny]

You do know that there are two ways of dealing with this kind of noise... shielding or designing the circuit to minimize the generation of the noise to begin with, thus eliminating entirely the need for a shield.

What tube amps have circuits that don't need heavy shielding? Without making my brain hurt too much how would it differ from on that does?

 

[agedhorse]

What tube amps have circuits that don't need heavy shielding? Without making my brain hurt too much how would it differ from on that does?

In this case the example isn't a tube amp, it the premise is that the more you can eliminate (or control the direction of) electric and magnetic fields, the less you have to shield. For a simple example, with a well designed toroidal transformer, often it is possible to reduce the field and orient to he direction well enough that shielding is not necessary. It's also helpful if the audio circuitry is designed not to be sensitive to E & M fields.

It should also be noted that you can appear to shield the crap out of a circuit and still have serious noise issues.

My point was to clarify that shielding is not the only way to make a quiet amp. And conversely, just because an amp has no shielding doesn't mean that it will bbe noisy. No different than saying an amp has to be large and heavy to reproduce bass.

 

[tombowlus]

You do know that there are two ways of dealing with this kind of noise... shielding or designing the circuit to minimize the generation of the noise to begin with, thus eliminating entirely the need for a shield.

I'm sure that there are multiple ways to crack the nut from an engineering/design perspective, but I also know that from all the heads I have heard, Glockenklang as a brand is the best I have heard in terms of being dead-silent, with no noise or hiss. They've done this on pretty much every head of theirs I have heard. Acoustic Image is another brand which has proved to be very, very good (across their product line) in terms of minimizing noise/hiss.

 

[svtb15]

my friend.. AND YOURS bobby vega LOVES his Glock.. We talked about it a few weeks ago.. He is married to that amp.. I never played one yet...

I'm sure that there are multiple ways to crack the nut from an engineering/design perspective, but I also know that from all the heads I have heard, Glockenklang as a brand is the best I have heard in terms of being dead-silent, with no noise or hiss. They've done this on pretty much every head of theirs I have heard. Acoustic Image is another brand which has proved to be very, very good (across their product line) in terms of minimizing noise/hiss.

 

[fast slapper]

That Anaview module looks pretty robust. Wonder if they're still using the same module between the Blue Soul/Sky/Rock.

 

[Snaxster]

That Anaview module looks pretty robust. Wonder if they're still using the same module between the Blue Soul/Sky/Rock.

Hello. That seems unlikely since the previous models' output specs were significantly lower.

If you'd like to research the previous models, you can compare their Class D modules to the one in the Blue Rock, whose model is Anaview ALC1000-1300-G.

Since a "-G" variant is not mentioned in Invalid Link Removed, I think it's safe to assume that "-G" stands for Glockenklang; that this module is customized for them.

 

[pfschim]

was doing some tube rolling in my Demeter VTBP-M-800DJ and decided I might as well post some gut shots of it while I was at it.
FWIW, I ended up replacing the stock V1 EH 12AX7 with a Sovtek 12AX7LPS, and the stock V2 JJ EC81/12AT7 with a NOS Jan Phillips 12AT7WC.
The Sovtek in V1 did not do a great deal to the over all tone, other than having much less hiss than the EH 12AX7.
The Jan Phillips in V2 did something very nice to my ears. Hard to put it words, but it would seem to have made an already impressively responsive amp even more so .. more responsive to the touch on each string. IDK, my ears are not great anymore, but I did hear something change for the better - and it was already pretty great to begin with

New tubes - top view.

Real gut shot

enjoy!

 

[disssa]

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[Invalid or Expired Link Removed]

 

[RedVee]

Eminar Valve Amp guts. Not sure what photos are interesting, perhaps I went overboard...
Btw there is a sticker in there with a 1968 date, visible in pic 6.

 

[Snaxster]

View attachment 984122 View attachment 984123 View attachment 984124 View attachment 984126 View attachment 984128 View attachment 984129 View attachment 984130 View attachment 984131

Eminar Valve Amp guts. Not sure what photos are interesting, perhaps I went overboard...
Btw there is a sticker in there with a 1968 date, visible in pic 6.

Hello. Those photos are lovely. But they are all external. Where are the guts? Let's see the internals, please.

 

[RedVee]

Hello. Those photos are lovely. But they are all external. Where are the guts? Let's see the internals, please.

I thought I was being brave getting to that point.
Not sure how.