Showing posts with label 245. Show all posts
Showing posts with label 245. Show all posts

Wednesday, February 26, 2020

Box Of Crusty Antique Triodes

Jim Hunter Klipsch audio history museum curator picked these up at an auction. This is one of the best tube scores I've had in a while. There are 12 45 globes and a few 26, 27, 347,112, and various ancients.
 There were 5 testing strong and 1 weak with 7 showing no glowing filaments. Check out this radiotron!
 Check out the bases and the working blue Arcturus 27.
  

The bases were unreadable and I always wanted to do this. I took some white high gloss paint and wiped on then wiped off leaving the high gloss paint in the engraved bases. Beautiful...




Tuesday, August 28, 2018

Wednesday, February 25, 2015

Very Early Pro Sound - Field Coils with Horns and Triodes 245 250

This is one of my favorite early ads because it has it all like field coils, horns, triodes in the flavor of 250 and 245.

$20 in 1930 equals about $275 today.
 Nice selection of field coils from the early guys Jensen and Utah.
 I want everything I build to look like these early pro amps.

Monday, October 6, 2014

Tone Quality - General Amplifier Company - 1929

They do not get points for creative company names but I like the industrial look of their gear. They are building around the 250  and 245. I with they had a picture of the GA40 with four 250's and four 280's. Certainly overkill back in the day.


Monday, September 8, 2014

Engineering Features Of The UX-245

A great article about one of our favorite triodes the 45.
 

Wednesday, June 25, 2014

Power Amplification And The 245 Tube - Radio News 1929

I've been doing my homework researching the old triodes when I found this old article. It is just two pages but I also noticed the magazine was packed with info on the 245 and some on the 250. I included a few ads from the magazine as well.



I really like the simple utilitarian look of this amp. 225 245 and 280 tubes.