Tweedle Dee Deluxe Build

[pompeiisneaks]

I'm doing a Tweedle Dee Deluxe. Been chatting about the eyelet board here on other threads, but here's the first video in the series:




~Phil

[pompeiisneaks]

Here's a pic of the board I've completed.

IMG_20171003_185815.jpg

~Phil

[Mark]

Have you seen Blencowe's articles on this type of P.I.?

He discusses the blatty sound from the P. I. and his measures to overcome it.

I get the feeling that the HAD P.I. stage has less current capability than the stock amp. I'm not sure if that is a plus or a minus. I think the amp needs more gain from the first stage as a lot of gain is lost in the P.I.

Of course I could be wrong but that's how it looks like on paper to me.

[pompeiisneaks]

Interesting, I'll have to see how the circuit sounds, and if possible, I may incorporate some of Merlin's stuff. I've got the second video up now, here it is:

[jph118]

Have you seen Blencowe's articles on this type of P.I.?

He discusses the blatty sound from the P. I. and his measures to overcome it.

I get the feeling that the HAD P.I. stage has less current capability than the stock amp. I'm not sure if that is a plus or a minus. I think the amp needs more gain from the first stage as a lot of gain is lost in the P.I.

Of course I could be wrong but that's how it looks like on paper to me.

I found exactly this when I played with the Tweedle circuit... HAD was on to something with the dedicated PI B+ node and greater plate & cathode resistance. I didnt find the balance pot very necessary though, but Merlin's grid stopper idea helps with the blattyness.

PS - your TW Rocket schematic came out great for me Mark!

[Mark]

Cool. Great to hear everything worked out.

[pompeiisneaks]

Video 3 of the Tweedle Dee Deluxe, we continue populating the eyelet board with components:




~Phil

[norburybrook]

that's all far too neat and tidy Phil. You should see my studio when I'm in the middle of a build, looks like someone's left a horse in there

M

[pompeiisneaks]

Well my shop is always a mess, this is my wife wanting to do it on the kitchen table (thus the paper towels covering the table so as to not scratch it )

~Phil

[sluckey]

You're very lucky to have a wife that shares an interest in this stuff with you.

[pompeiisneaks]

Yes, yes I am

~Phil

[pompeiisneaks]

Video 4 of the Tweedle Dee Deluxe is out!

[pompeiisneaks]

The latest in the series.




~Phil

[pompeiisneaks]

Looks like I missed video 6 here somehow, but here are both of them:

Video 6:


Video 7:



~Phil

[pompeiisneaks]

Video 8:




~Phil