IT'S HERE!!!!

50 SOME YEARS LATER...

The Sylvania Exponent 4 40 showed up yesterday to my surprise (a day early).

Unboxed it and it was very well packed for delivery. Super Job!

It is every thing I remember from the first Sylvania record player. It sounds amazing and the condition 

is A- / B+ . I am very happy with everything.

All the accessories (speaker cables, power cable, turntable spindle, changer

spindle, 45 singles spindle, new stylus) are in a bag inside the unit. I

also included the original parts that I pulled form the unit (minus the old

idle wheel).

Set-up: screw the 2 transport screws all the way in at the record changer

chassis (I marked these for you). Pull the blue foam pad form underneath the

turntable platter.

Install changer spindle (push in until it clicks into place) Power cable.

Speaker cables. Switch settings: selector to phono.

I hope the unit finds you well and is all you hoped for it to be.

 I remember when finished refurbishing I listened to your amplifier and thought it was one of the nicest sounding solid state amplifiers I had heard in a long time - I remember the sound being pretty close to tube - with lots of detail.

Sylvania Exponent 4/50 Record Player/radio with Garrard Turntable Vintage

UPDATE ON THE PROJECT to GET BACK

The hour has finally come: The unit is ready. It is a different revision of

the Exponent 4-40 than the one that I had before. Probably pretty rare. This

one is point to point wired and thus it was quite difficult and extremely

time involved to work on it, as circuitry is constructed 3 dimensionally and

it was very hard to work on replacing parts at the lower levels, but I am

happy to report that all went well and that all is perfect now.

The amplifier in this unit sounds truly amazing rivaling expensive High End

amplifiers. The sweetest amp I have heard in a long time. The best solid

state amplifier I have heard thus far.

The photo shows: Front, Rear, amplifier inside, replaced electronics parts.

Work performed: Amplifier: Replaced all power supply and signal coupling

caps. Treated controls, contacts and switches with contact cleaner.

Record changer: cleaned and re-lubricated all mechanical parts. Replaced the

idler wheel. Re-worked drive surfaces. Mechanical adjustments. Casing:

Physical cleaning and detail work. Custom fabricated replacements for the

cable holders. 

The '67 EXP-440 came in two different versions. One used a ceramic cartridge and an 8-transistor amp. The EXP-440-2 used a Pickering magnetic cartridge and a 12-transistor amp, 4-transistors for the additional phono pre-amp stage.

The phono pre-amp stage exclusively uses a common 26-volt DC supply voltage. If the 470-ohm 5-watt resistor feeding the 26-volt supply were to open up, it would kill both channels of the phono pre-amp and not affect the aux inputs.

Looking at the component side of the circuit board with the controls at the top, it's the only square, 5-watt wire wound resistor on the lower right side of the board, just above the main power supply rectifier diodes.

Misc. SYLVANIA EXPONENT 4 40 AND MORE

1967 solid state Sylvania Exponent 440-2 portable. It has a Garrard record changer with a 4-pole motor and a Pickering magnetic cartridge, sealed acoustic suspension speakers and a 20-watt per channel amplifier. This was not your average fold down, swing out stereo record player of the '70s. It weighs a ton and sounds like it. The one picture shows it set up for an after hours 45 party, connected to a pair of Definitive speaker columns. We shook the floor joists until 4am.

Vintage 1964 Sylvania Exponent 4/40 Stereo and stand,,,

Vintage Sylvania Exponent 4/40 GT Record Player with Garrard Turntable and speakers! This is the real thing, all original, sounds amazing!

Found this little beauty awhile ago.

Sylvania Exponent Model 4/10-1. Its a suitcase type fold down portable record player with a Garrard turntable in it. When I found it, it didn't work, platter was frozen, and it had a decent layer of dust on it.

Today seemed like a good day to dig into it.

Found the right cords, got the platter moving, retro-fitted a new Audio-Technica cartridge/stylus and got this sweet piece working. Sounds pretty good although it's a portable so its not all that loud. Perfect for a bedroom.

Cleaned up pretty nice. Very gently used if ever. Very clean vinyl covered wood with no rips or scuffs to speak of. Motor is strong, and auto function works. I'll post a video on my timeline so check it.

Sylvania Exponent 4/40 Portable Turntable from 65

Sylvania Exponent 4/40 Garrard

record player. Everything folds up into 1 neat package to carry with you. Works! 

Sylvania Exponent 4/10 portable record player with Garrard turntable

1966 Sylvania Exponent 4/20 Hi-Fi record player. It still works great! And, it's portable!

 Sylvania Exponent 4/50- the top of the line portable for the year (1971) this one truly is a console chassis in a portable case. Magnetic cartridge, and FM stereo tuner. The performance is just great. It's so big, I have to put the speakers behind it to fit it on the table.