Amps

 

VALVES !!

A SUMMARY OF THE SELMER AMPLIFIER RANGE THROUGH THE VARIOUS PRODUCTION PERIODS, AND THE VALVE TYPES USED FOR EACH MODEL

 

Power Amp Section of Croc-Period Thunderbird 30, courtesy of Eric Aho, Finland.

 

The intention behind the production of this table was to help make some sense out of the numerous model names used by Selmer at the various periods, and also to assist in understanding the development of the model range. For instance, we have understood for some time that the Concorde 8 in the "crocodile" period was really a Professional amp from the earlier red/cream period with different cosmetics, and this appears to be confirmed on inspection of the valve compliment. However, the development of the Concord 10 is now easier to appreciate after  noting the change from 2 x 6AQ5 valves of the 8watt amp to the 2 x EL84's of the 10 watt Concord.

A similar matter of interest is that the Zodiac 30/50 amps and the Thunderbird 50 fitted with two EL34's seem to owe their heritage to the 25watt Selectortone Automatic of the Red/Cream Period, rather than the Blue/Grey Twin Selectortone with its pair of KT88 valves which one may have expected. Rather confusingly, only the Thunderbird 30 was developed from the Twin Selectortone. 

The inclusion of valve and silicon rectifiers has been included to show the gradual adoption of solid-state rectification. The use of silicon rectifiers in combination with rectifier valves seems to have begun with certain of the 50/100 watt amps in the "Crocodile" and Blue/Black periods, with all solid-state rectification being used by the time of the SV Period.

Photographs and details of the VALVES COMMONLY USED BY SELMER are provided at the bottom of this page.

KEY TO PRODUCTION PERIODS USED IN TABLE:

R:   Red Cream Period (1958-61)
G:   Blue/Grey Period (1962-63)
C:   Croc-skin Period (1963-65)
BB: Blue/Black Period (1965-67)
BS: Black/Silver Period (1967-69)
SV: SV Period  (1970 - c1978)    

NOTE: The valve information used in this table has been obtained from Selmer catalogues, and has not been compared to official Selmer schematic diagrams. It should not therefore be used for any purpose other than gaining a general overview on Selmer amplifier history. 

MODEL

POWER OUTPUT PERIOD

POWER AMP STAGE

PRE-AMP STAGE

RECTIFIER

4/5 watt Combos without Effects

EL84 6AQ5 EL34 6BW6 KT88 EL506 ECC81 ECC82 ECC83 EF86 6BR8 EM84 EZ80 EZ81 GZ33 GZ34

Silicon

LITTLE GIANT 4 watt R/G/C/BB 1     1       1
POPULAR 5 watt R/G/ 1       1     1

5/6 watt Combos with Tremolo

EL84 6AQ5 EL34 6BW6 KT88 EL506 ECC81 ECC82 ECC83 EF86 6BR8 EM84 EZ80 EZ81 GZ33 GZ34

Silicon

STANDARD 5 watts R/G 1     1 1     1
MERCURY 5 5 watts C 1     1 1     1
CORVETTE 6 6 watts BB 1 2 1

8 watt Combos with Tremolo

EL84 6AQ5 EL34 6BW6 KT88 EL506 ECC81 ECC82 ECC83 EF86 6BR8 EM84 EZ80 EZ81 GZ33 GZ34

Silicon

PROFESSIONAL 8 watts R/G 2     2       1
CONCORD 8 8 watts C 2 2 1

10 watt Combo with Tremolo

EL84 6AQ5 EL34 6BW6 KT88 EL506 ECC81 ECC82 ECC83 EF86 6BR8 EM84 EZ80 EZ81 GZ33 GZ34

Silicon

CONCORD 10 10 watts C 2     2       1

10 watt Combo with Tremolo & Reverb

EL84 6AQ5 EL34 6BW6 KT88 EL506 ECC81 ECC82 ECC83 EF86 6BR8 EM84 EZ80 EZ81 GZ33 GZ34

Silicon

TRIUMPH REVERB 10 watts G 2     4       1
14 watt Combo without Effects EL84 6AQ5 EL34 6BW6 KT88 EL506 ECC81 ECC82 ECC83 EF86 6BR8 EM84 EZ80 EZ81 GZ33 GZ34

Silicon

AUDITORIUM 14 watts R 2 3 1

14/15 watt Combos with Tremolo

EL84 6AQ5 EL34 6BW6 KT88 EL506 ECC81 ECC82 ECC83 EF86 6BR8 EM84 EZ80 EZ81 GZ33 GZ34

Silicon

STADIUM 14 watts R/G 2   1 1 3     1
CONSTELLATION 14  14 watts C 2   1 1 3     1
SELECTORTONE ROTARY 15 watts R 2     2 2     1
14/15 watt Combos with Reverb EL84 6AQ5 EL34 6BW6 KT88 EL506 ECC81 ECC82 ECC83 EF86 6BR8 EM84 EZ80 EZ81 GZ33 GZ34

Silicon

VANGUARD 15 watts BS 2     3   1   1

14 watt Combo with Tremolo & Reverb 

EL84 6AQ5 EL34 6BW6 KT88 EL506 ECC81 ECC82 ECC83 EF86 6BR8 EM84 EZ80 EZ81 GZ33 GZ34

Silicon

DIPLOMAT REVERB 14 watts G 2 2 1 3   1   1

20 watt Combo with Tremolo

EL84 6AQ5 EL34 6BW6 KT88 EL506 ECC81 ECC82 ECC83 EF86 6BR8 EM84 EZ80 EZ81 GZ33 GZ34

Silicon

CONSTELLATION 20  20 watts C 2 1 2 1
30 watt Combo without Effects EL84 6AQ5 EL34 6BW6 KT88 EL506 ECC81 ECC82 ECC83 EF86 6BR8 EM84 EZ80 EZ81 GZ33 GZ34

Silicon

COMPACT 30 SV 30 watts SV 2   1 1       l
25/30/50 watt Combos with Tremolo EL84 6AQ5 EL34 6BW6 KT88 EL506 ECC81 ECC82 ECC83 EF86 6BR8 EM84 EZ80 EZ81 GZ33 GZ34

Silicon

SELECTORTONE AUTO 25 watts R/G 2     2 2     1
ZODIAC TWIN 30 30 watts C 2     3 2     1
ZODIAC TWIN 50 50 watts C 2     3 2     1
ZODIAC 50 Mk2 50 watts BB 2     4       1
30/50 watt Combos with Reverb EL84 6AQ5 EL34 6BW6 KT88 EL506 ECC81 ECC82 ECC83 EF86 6BR8 EM84 EZ80 EZ81 GZ33 GZ34

Silicon

TREBLE N BASS 50 REVERB 50 watts BS 2 4 1 l
COMPACT 50R SV 50 watts SV 2     5       l
30/50 watt Combos with Trem & Reverb EL84 6AQ5 EL34 6BW6 KT88 EL506 ECC81 ECC82 ECC83 EF86 6BR8 EM84 EZ80 EZ81 GZ33 GZ34

Silicon

TWIN SELECTORTONE 30 watts G/ 2 4 2     1
THUNDERBIRD TWIN 30 (Initially) 30 watts C 2  2 4 2   1
THUNDERBIRD TWIN 30 (Later) 30 watts C 2 1  1 4  1 1
THUNDERBIRD TWIN 50 50 watts C 2 1 1 4   1 1 1
THUNDERBIRD TWIN 50 Mk2 50 watts BB 2     4   1  1 1
30/50 watt Amp Heads without Effects EL84 6AQ5 EL34 6BW6 KT88 EL506 ECC81 ECC82 ECC83 EF86 6BR8 EM84 EZ80 EZ81 GZ33 GZ34

Silicon

BASSMASTER 30 30 watts G/C 2     4       1
BASSMASTER 50 50 watts C 2     4       1 (1)
TREBLE N' BASS 50 50 watts C 2     4       1 (1)
TREBLE N' BASS 50 Mk 2 50 watts BB 2     3       1
TREBLE N' BASS 50 Mk3  50 watts BS 2           l
TREBLE N' BASS 50 SV 50 watts SV 2     4       l
TWIN LEAD 30 30 watts BB 2     1       1 (1)
TWIN BASS 30 30 watts BB 2     1       1 (1)
ALL PURPOSE TWIN 30 30 watts

30 watts

BS

BS

2

2

  2

 

 

1

       

1

l

(1)

ALL PURPOSE TWIN 30 30 watts SV 2 1 1 (1)
30/50 watt Amp Heads with Reverb EL84 6AQ5 EL34 6BW6 KT88 EL506 ECC81 ECC82 ECC83 EF86 6BR8 EM84 EZ80 EZ81 GZ33 GZ34

Silicon

TREBLE N' BASS 50 REVERB 50 watts BS 2 4 1 l
TREBLE N' BASS 50 SV REVERB 50 watts SV 2     5     l
ZENITH 50 50 watts BS 2     4   1   l
30/50 watt Amp Heads with Tremolo EL84 6AQ5 EL34 6BW6 KT88 EL506 ECC81 ECC82 ECC83 EF86 6BR8 EM84 EZ80 EZ81 GZ33 GZ34

Silicon

SUPER ZODIAC 50 50 watts BS 2     4       l
30/50 watts Heads with Trem & Reverb EL84 6AQ5 EL34 6BW6 KT88 EL506 ECC81 ECC82 ECC83 EF86 6BR8 EM84 EZ80 EZ81 GZ33 GZ34

Silicon

ZODIAC 50 SV 50 watts SV 2     6       l
100 watt Amp Heads without Effects EL84 6AQ5 EL34 6BW6 KT88 EL506 ECC81 ECC82 ECC83 EF86 6BR8 EM84 EZ80 EZ81 GZ33 GZ34

Silicon

TREBLE N' BASS 100 100 watts BB/BS 4     5       2
TREBLE N' BASS 100 SV 100 watts SV 4     4       l
STEREOMASTER 2x50watts BB 4     4       2 (2)
PA 100 100 watts BB 4     5 1     2 (1)
PA 100 MkII 100 watts BS 4 5 1 l
PA 100/4 SV 100 watts

100 watts

SV

SV

4

4

    6

5

 

1

    l

l

100watt Amp Heads with Reverb EL84 6AQ5 EL34 6BW6 KT88 EL506 ECC81 ECC82 ECC83 EF86 6BR8 EM84 EZ80 EZ81 GZ33 GZ34

Silicon

ZENITH 100 100 watts BS 4     4   1   l
PA 100/6 REVERB 100 watts BS                l
PA 100/6 SV REVERB 100 watts SV              l
100watt Amp Head with Tremolo EL84 6AQ5 EL34 6BW6 KT88 EL506 ECC81 ECC82 ECC83 EF86 6BR8 EM84 EZ80 EZ81 GZ33 GZ34

Silicon

SUPER ZODIAC 100 100 watts BS 4     4       l
100watt Head with Trem & Reverb EL84 6AQ5 EL34 6BW6 KT88 EL506 ECC81 ECC82 ECC83 EF86 6BR8 EM84 EZ80 EZ81 GZ33 GZ34

Silicon

ZODIAC 100 SV 100watts SV 4     6       l
200watt Head without Effects  EL84 6AQ5 EL34 6BW6 KT88 EL506 ECC81 ECC82 ECC83 EF86 6BR8 EM84 EZ80 EZ81 GZ33 GZ34

Silicon

CHIEFTAIN 200 200watts SV 8     7        l

NOTES:

 


 

VALVE (TUBE) TYPES COMMONLY USED IN SELMER AMPLIFIERS:

EL34

EL84

KT88

6BW6

6AQ5

EL506

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ECC81

ECC82

ECC83

EF86

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EZ80

EZ81

GZ34 (5AR4)

Silicone Diodes

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