Friday, February 24, 2017

Tuesday, February 21, 2017

Intact Audio New Autoformer Volume Controls Landed

I've used a few versions of the autoformer volume controls from Intact Audio so I was excited when a new version sorry versions were announced last month. I have a couple projects in the works but these are going into my Brook clones. The build quality on these are great.

The basic building block of the family is a compact 23 step autoformer that measures 2.4" X 1.6" and is 1.8" deep. They can have any taper desired and the stadard version comes with the following dB steps. (0, -3, -6, -9, -12, -14, -16, -18, -20, -22, -24, -26, -28, -30, -32, -34, -36, -39, -42, -45, -48, -52 and Mute)

Thank you Intact Audio! 

Monday, February 20, 2017

1954 Choosing Your Hi-Fi Speaker Enclosure

A vintage speaker enclosure article from the labs of University Loudspeakers.

Sunday, February 19, 2017

Messer Chups

One of my fave surf type bands. I guess they are surf goth? It doesn't hurt that Zombierella on bass looks like Betie Page.

Friday, February 17, 2017

Retro Hi-Fi Girl Friday

Killer pad!

Wednesday, February 15, 2017

1954 Electro-Voice Reproducers

1954 EV Advert

Tuesday, February 14, 2017

Wonderland - Love's A Murder

Happy VD!

From the Byron Werner Dept Of Internet Research

Monday, February 13, 2017

1952 Corner Loudspeaker Enclosure

Here is another 1950's corner enclosure. Good ole days.

Friday, February 10, 2017

Thursday, February 9, 2017

Wednesday, February 8, 2017


I love the enclosures for vintage transformers and amplifier chassis.

Monday, February 6, 2017

Class A Transistor Power-Output Circuits

The Dark Side. 
A Transistor article from 1960. 

Sunday, February 5, 2017

John Peel on Captain Beefheart And His Magic Band - BBC Documentary

 Brilliant Documentary.. I am not a big classic rock fan but Captain Beefheart And His Magic Band transcends labels.

Friday, February 3, 2017

Saturday, January 28, 2017

Intact Audio New Autoformers Now Available

I am a big fan of autoformer volume controls and have been listening to the ones from Intact Audio for many years. Screw pots is all I gotta say.  Dave Slagle's AVC products are available in many configurations and also custom work is available. 
What do you want from an autoformer? I can safely say you can find it at Intact Audio. Lets look at a few of what is available today. 
The top of the line is a 47 position stereo attenuator that goes seamlessly from +5dB to -51.25dB in 47 1.25dB steps. This stereo unit can also be wired as a mono balanced unit. It is also available in silver if that is your fetish.
 I know I'll be picking up one of these at some point for a DHT preamp. Two of the 23 position autoformers are placed on a single board with a "penalty free" balance control between them. Each autoformer step is 2.5dB and the balance control allows for a 1.25dB shift to the left or right. Maximum attenuation is 52.5dB.

This is what I'll be installing in my Brook 12A monoblocks I'm working on. This is a compact 23 step autoformer. I'm going with the stock attenuation with the following steps 0, -3, -6, -9, -12, -14, -16, -18, -20, -22, -24, -26, -28, -30, -32, -34, -36, -39, -42, -45, -48, -52 and Mute. Since this is Intact Audio Dave will wind any taper desired

Friday, January 27, 2017

Wednesday, January 25, 2017

Am I Blue

Hoagy Carmichael and Lauren Bacall in one of my favorite movies To Have And Have Not. It is short but sweet little tune.

Tuesday, January 24, 2017

Compactrons Advance In Tube Design

I started researching Compactrons after reading a few articles by Thomas Mayer posted on Vinyl Savor. I stumbled upon this article the other night and thought I would share. I found a triple triode compactron that looks like fun.

Monday, January 23, 2017

1930's Racon Hight Frequency Loudspeak

This from when 3,000-12,000 was as high as you needed. No bat slaying here.

Friday, January 20, 2017