Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: p2pAmps on March 25, 2022, 07:08:01 am

Title: 5E3 Madness
Post by: p2pAmps on March 25, 2022, 07:08:01 am: Here's a quick-pic of some 5E3s in the shop. I have 35 to build so far so I should have it down by #35 :)

Shout out to My Doug for continuing to make excellent boards for this project

(https://images.squarespace-cdn.com/content/v1/56fbe87462cd94ff6ec9d02c/1648209946650-5VYGH7GKWPZ7N8B3KPZA/IMG_0553.jpeg?format=1500w)
Title: Re: 5E3 Madness
Post by: EL34 on March 25, 2022, 07:23:40 am: Dang Mike, you are a busy guy.

Where is the youtube video that triggered all of this?
Title: Re: 5E3 Madness
Post by: p2pAmps on March 25, 2022, 07:27:36 am: Quote from: EL34 on March 25, 2022, 07:23:40 am
Dang Mike, you are a busy guy.

Where is the youtube video that triggered all of this?

No wise cracks Doug about my crappy playing! :)

Also, big shout out to Sluckey for tipping me off to a better PT (Hammond 290BX).

&t=165s
Title: Re: 5E3 Madness
Post by: EL34 on March 25, 2022, 07:31:03 am: Sounds nice and fat!
Title: Re: 5E3 Madness
Post by: p2pAmps on March 25, 2022, 07:32:01 am: Quote from: EL34 on March 25, 2022, 07:31:03 am
Sounds nice and fat!

Well that real 58 LesPaul does hurt matters (not mine)
Title: Re: 5E3 Madness
Post by: jordan86 on March 25, 2022, 07:56:58 am: Wow very cool video. And very neat to learn Mike is buds with the one and only Tom B. I discovered Tom through the Nobels ODR-1, and watched a lot of the Homeskoolin stuff during the early covid days. What a player! And not too bad yourself there, Mike. Great video and great amp.
Title: Re: 5E3 Madness
Post by: SILVERGUN on March 25, 2022, 08:15:10 am: "Nice business model" :laugh:

Nothing like old friends to keep you humble.
Great work Mike. Always nice to see good people smiling.
Title: Re: 5E3 Madness
Post by: kagliostro on March 25, 2022, 11:06:38 am: Reading Madness I was thinking about an impossible to be find problem

then I've seen your photo

:bravo1: :bravo1: :bravo1:

Franco
Title: Re: 5E3 Madness
Post by: zircontweezer on March 28, 2022, 02:59:28 pm: Nice! I saw the homeskoolin video a while back and the amp sounds great vintage guitar or not. Any hints about changes to the original circuit? :smiley:
Title: Re: 5E3 Madness
Post by: p2pAmps on March 28, 2022, 04:50:05 pm: Quote from: zircontweezer on March 28, 2022, 02:59:28 pm
Nice! I saw the homeskoolin video a while back and the amp sounds great vintage guitar or not. Any hints about changes to the original circuit? :smiley:

Hey thanks a lot. A few changes I do are replacing a few .1uF cap with .022uF. I also added a NFB switch (56K) which was a rip off from Rob Robinette. I add a ground buss on the top of the board and terminate it next to the inputs. I basically do that on everything I build these days. Also I swap out the 1st filter cap with a 33uF which really made a nice difference in noise. Right now these amps are dead quiet (thanks you Jesus :) ). Also, thanks fo my bud Sluckey, I started using Hammond 290BX PTs and the voltages are now right where I like it (also using a NOS 5Y3 rectifier)

Thats about it I guess. I just try and build as clean as possible and pay attention to the little stuff.

Cheers
Title: Re: 5E3 Madness
Post by: p2pAmps on March 28, 2022, 04:52:54 pm: They have multiplied it seems :icon_biggrin:

(https://images.squarespace-cdn.com/content/v1/56fbe87462cd94ff6ec9d02c/1648504323909-29IXDHYFGGFK6ABGPN9X/IMG_0578+2.JPG?format=1500w)
Title: Re: 5E3 Madness
Post by: uki on March 28, 2022, 04:58:16 pm: Lotta amps !!! Send one over here !!! :icon_biggrin:
Title: Re: 5E3 Madness
Post by: p2pAmps on March 28, 2022, 05:43:46 pm: Quote from: uki on March 28, 2022, 04:58:16 pm
Lotta amps !!! Send one over here !!! :icon_biggrin:

Shall I send you my PayPal? HA!!!
Title: Re: 5E3 Madness
Post by: Backwoods Joe on March 28, 2022, 09:20:59 pm: Mike, good to see you with Uncle Larry. Great job!
Title: Re: 5E3 Madness
Post by: PRR on March 28, 2022, 10:54:52 pm: Quote from: p2pAmps on March 28, 2022, 04:52:54 pm
They have multiplied it seems :icon_biggrin:

(https://images.squarespace-cdn.com/content/v1/56fbe87462cd94ff6ec9d02c/1648504323909-29IXDHYFGGFK6ABGPN9X/IMG_0578+2.JPG?format=1500w)
Title: Re: 5E3 Madness
Post by: zircontweezer on March 30, 2022, 03:17:35 am: Thanks for the info on the mods :occasion14:
Title: Re: 5E3 Madness
Post by: p2pAmps on April 02, 2022, 08:20:49 pm: (https://images.squarespace-cdn.com/content/v1/56fbe87462cd94ff6ec9d02c/1648948788729-MXAKOTRNPHMUO9RD0PS9/UncleLarryAmps.jpg?format=2500w)
Title: Re: 5E3 Madness
Post by: BarryW on April 03, 2023, 10:21:54 pm: I’ve been away from this page for far too long. Mike, thanks for your detail. I’ve been building other types of amps - it’s been so long since I did a nice 5e3, and I found your experiences really helpful. It’s coming back to me! Thanks so much for sharing, beautiful work. Most cool to see your history with the wonderful Tom B!