Siemens 2000 16mm movie
projector amps |
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The
Siemens 2000 projector was the most sold 16mm projector in Germany.
Thousands of them were sold to schools or companies. Usually the projector
was accompanied by a green speaker enclosure with L307 or L405 speaker.
Forget the preamp
section of these amps - very noisy and unlinear frequency response. Some power amps are good - some need mods to sound
like hifi equipment. Some of them do not use feedback (or very low) and carry a lot of hum
with them (not too disturbing with the original speakers, but with a good
woofer or horn system ....). |
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Model |
picture |
Output |
Drivers |
Comment |
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Smf V 1c
KL V305a |
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EL41 PP |
EF40
EF40
EF40
EF40
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First version of these
amps introduced in 1956. Rated at 10 watts with rare tubes. Capacitors need careful check (hum on most units).
Better use the later EL84 PP version. |
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Smf V 3b
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EL41 PP |
EF40
EF40
EF40
ECC40
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Later version of the
avove amp with magnetic sound facilities.
Pretty rare amp. |
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Smf V 4b |
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EL84 SE |
EF40
EF40 |
Introduced together with the above amp, this is my favourite one from this series.
5 watts of single ended output power. Bigger ouput transformer than in the
later EF86 type. Better sound! |
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Sf V 6.1 |
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EL95 PP |
EF86 ECF80 |
Originally not seperable from the projector. This is why this unit
is mostly found without top plate. |
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Sf V 6.2 |
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EL41 PP |
EF40
EF40
ECC83
ECC83 |
Precurser to the 6.7 amp, but using EL41 output tubes. Good.
Rare. |
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Sf V 6.4 |
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EL84 SE |
EF86
EF86 |
Inferior to the EF40 version. Smaller output transformer. Needs
proper modification (click
here to see how to do this) to perform as Hifi amp. |
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Sf V 6.5 |
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EL84 PP |
EF86
EF86
EF86
ECC83 |
Later version of the above amp. Very small OPT. Much inferior. |
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Sf V6.5s |
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EL84 PP |
EF86
EF86
ECC83
ECC83 |
Amp found in Denmark. Similar to 6.7 version, but not having
magnetic sound facilities. |
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Sf V 6.6 |
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EL95 PP |
EF86 ECF80 |
Originally not seperable from the projector. This is why this unit
is mostly found without top plate. |
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Sf V 6.7 |
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EL84 PP |
EF86
EF86
ECC83
ECC83 |
The
best PP amp. Some units carry a T42 input transformer - very nice.
Bad preamp section, but the power amp section is good. Very common
unit. |
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