Philv
pfm Member
rca 5961 nos red base black plate 1950s (4).
2matched pairs (4)
H6000 Hickok, and I also then tested them on my
Maximatcher pro with the following results:
Valve #1348 - Gain 73/72 Mu, GM 1490/1470 mhos, noise -85.5 / -86 dB
Valve #1357 - Gain 72/72, GM 1480/1460, noise -85 / -86 dB
Valve #1352 - Gain 70/71, GM 1460/1470, noise -85 / -85 dB
Valve #1354 - Gain 70.5/71. GM 1465/1460, noise -85/-85 dB
All tested for noise and microphony and very quiet.
£160 posted
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mullard MCP DN ecc83
MCP DN
1954 hamburg
Foil getter with curved supports.
1.3 /1.25 gm and 1.6 /1.6 gain
108%/104% and 100%/100%
1600 /1600 gm and 91 /90 gain
(new = 1.2 and 1.6)
Very strong.
£120 posted
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mullard mc1 12ax7 / ecc83 / cv492
Blackburn 1955 long plate
Goal post square getter
MC1 B5F
IA 1.5 / 1.6 and GM 1.7 / 1.8
125%/133% and 106%/113%
(new = 1.2 and 1.6)
£170 posted
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mullard mc1 12ax7 / ecc83 / cv492
Blackburn 1956 long plate
Goal post square getter
MC1 B6J
IA 1.35 / 1.5 and GM 1.5 / 1.65
113%/125% and 94%/103%
(new = 1.2 and 1.6)
£185 posted
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philips miniwatt (hamburg valvo) ecc83
MC1 D6B
Hamburg (valvo) 1956
Long plate.
Folded square getter.
1.35 / 1.5 and 1.7 / 1.8
113%/125% and 106%/113%
(new = 1.2 and 1.6)
£155 posted
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Mullard ecc83 MC6 holland matched pair (2)
Heerlen Holland
D foil getter
Long plates
MC6 ⊿9B
MC6 ⊿9C
1.1 / 1.1 and 1.5 / 1.5
1.1 / 1.1 and 1.5 / 1.5
92%/92% and 94%/94%
92%/92% and 94%/94%
(new = 1.2 and 1.6)
£235 posted
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Siemens s&h ecc83 MC1 (2)
MC1 ǂ7G / MC1 ǂ7G
Ultra rare. 1957.
1957 munich (Siemens & Halske)
Ring getter. Double support.
Long plates
#1: Gm 1888 / 1920 ma/V
(NOS range 1600 to 1900)
Gain 98.8 / 97.4 Mu
(NOS gain range 90 to 100)
Noise -83.3 / -84.5
(pretty good, top low noise score is -86.5 dB)
#2 Gm 1900 / 1950
Gain 100/102.3
Noise -76/-83.6
£230 posted
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Siemens s&h ecc83 MC6 (2)
MC6 ǂ9K / MC6 ǂ9K
Ultra rare. 1959.
1959 munich (Siemens & Halske)
Ring getter. Double support.
Long plates
0.8 / 0.9 and 1.5 / 1.6
0.9 / 1.0 and 1.5 / 1.6
65%/75% and 94%/100%
75%/83% and 94%/100%
(new = 1.2 and 1.6)
£120 posted
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picas to follow
2matched pairs (4)
H6000 Hickok, and I also then tested them on my
Maximatcher pro with the following results:
Valve #1348 - Gain 73/72 Mu, GM 1490/1470 mhos, noise -85.5 / -86 dB
Valve #1357 - Gain 72/72, GM 1480/1460, noise -85 / -86 dB
Valve #1352 - Gain 70/71, GM 1460/1470, noise -85 / -85 dB
Valve #1354 - Gain 70.5/71. GM 1465/1460, noise -85/-85 dB
All tested for noise and microphony and very quiet.
£160 posted
------
mullard MCP DN ecc83
MCP DN
1954 hamburg
Foil getter with curved supports.
1.3 /1.25 gm and 1.6 /1.6 gain
108%/104% and 100%/100%
1600 /1600 gm and 91 /90 gain
(new = 1.2 and 1.6)
Very strong.
£120 posted
------
mullard mc1 12ax7 / ecc83 / cv492
Blackburn 1955 long plate
Goal post square getter
MC1 B5F
IA 1.5 / 1.6 and GM 1.7 / 1.8
125%/133% and 106%/113%
(new = 1.2 and 1.6)
£170 posted
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mullard mc1 12ax7 / ecc83 / cv492
Blackburn 1956 long plate
Goal post square getter
MC1 B6J
IA 1.35 / 1.5 and GM 1.5 / 1.65
113%/125% and 94%/103%
(new = 1.2 and 1.6)
£185 posted
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philips miniwatt (hamburg valvo) ecc83
MC1 D6B
Hamburg (valvo) 1956
Long plate.
Folded square getter.
1.35 / 1.5 and 1.7 / 1.8
113%/125% and 106%/113%
(new = 1.2 and 1.6)
£155 posted
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Mullard ecc83 MC6 holland matched pair (2)
Heerlen Holland
D foil getter
Long plates
MC6 ⊿9B
MC6 ⊿9C
1.1 / 1.1 and 1.5 / 1.5
1.1 / 1.1 and 1.5 / 1.5
92%/92% and 94%/94%
92%/92% and 94%/94%
(new = 1.2 and 1.6)
£235 posted
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Siemens s&h ecc83 MC1 (2)
MC1 ǂ7G / MC1 ǂ7G
Ultra rare. 1957.
1957 munich (Siemens & Halske)
Ring getter. Double support.
Long plates
#1: Gm 1888 / 1920 ma/V
(NOS range 1600 to 1900)
Gain 98.8 / 97.4 Mu
(NOS gain range 90 to 100)
Noise -83.3 / -84.5
(pretty good, top low noise score is -86.5 dB)
#2 Gm 1900 / 1950
Gain 100/102.3
Noise -76/-83.6
£230 posted
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Siemens s&h ecc83 MC6 (2)
MC6 ǂ9K / MC6 ǂ9K
Ultra rare. 1959.
1959 munich (Siemens & Halske)
Ring getter. Double support.
Long plates
0.8 / 0.9 and 1.5 / 1.6
0.9 / 1.0 and 1.5 / 1.6
65%/75% and 94%/100%
75%/83% and 94%/100%
(new = 1.2 and 1.6)
£120 posted
------
picas to follow
