RARE MINT NOS 1953-56 Brimar CV1985 6SL7GTY Tubes. Square Getter and Brown Micanol Base. STC Footscray production. In generic white boxes from bulk. Cosmetic condition is quite good considering the bulk storage.There are two small variations in the Micanol base color as shown in the picture, Reddish Brown and Golden Brown. One of the most desirable 6SL7 type tubes. Last 2 tubes left from this lot.

NOTES:

1. In this lot, often some tubes have same month/year code with different shade of the base. Pairs are matched with the closest date code, base color and test scores.
2. Some tubes have white painted stamp of April 1964 apparently used to date stock by third party. That is not the year of production of the tubes.
   

Tested and matched on Top of the Line Calibrated Hickok 580 Lab Grade Tester recently calibrated by late Chris Haedt. 65% = 1000 mmhos on this tester for 6SL7.

NOTE: SPECIFY WHICH TUBE YOU WANT in the comments box during checkout process.

Tube 1: 1953 Reddish Brown Micanol Base 1850-1875 mmhos.SOLD

Tube 2: 1956 Golden Brown Micanol Base 1850-1750 mmhos.

Single Tube = $70.

• Brimar Brimar CV1985 6SL7GTY - RARE MINT NOS 1953-56 SQ Getter Brown Micanol Base - STC Footscray Prod.