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text also in the forum.
Country |
Year |
Name |
1st Tube |
Notes |
USA |
46 |
663 |
6BA6 |
In 1946 the tubes 6BA6 and 6BE6 came on the market. |
USA |
48–53 |
EC-113 |
12SA7 |
EC-112 and EC-113 are technically identical, differences are the design and material of... |
USA |
45 |
EC306 |
|
|
USA |
45 |
mit UKW EC403 |
|
10 Tasten |
USA |
45 |
mit UKW EC404 |
|
Ch=403 |
USA |
47/48 |
EC600 |
1R5 |
L-Abst. |
USA |
47/48 |
EX306 |
|
KW-Lupe; Herst.=Hallicrafters!! |
USA |
42–46 |
EC-1A |
12SA7 |
Coverage: 0.545-2, 2-7.5, 7.5-30.5 MHz, the EC-1B is nearly identical to model EC-1A. B... |
USA |
47/48 |
EX107 |
6SG7 |
4 x KW? |
USA |
45 |
EX108 |
|
9 Roehren... ? |
USA |
48–53 |
EC-112 |
12SA7 |
EC-112, EC-113 and EC-114 are technically identical, differences are the design and materi... |
USA |
45/46 |
EC-1B |
12SA7 |
Coverage: 0.545-2, 2-7.5, 7.5-30.5 MHz, AM/CW, ANL, speaker on the top-panel, bandspread, ... |