Science Workshop SW-6007 Center Frequency Readout, Complete Unbuilt Kit With Instructions
- 12 photos
Never used and never opened. Still in the factory tube, tray, reel or bag it shipped in, with the original date code intact.
New old stock, sealed on the grading scaleSend the quantity you need. You get a quote back with shipping before anything is charged.
Videos
Filmed on the bench. Sound is stripped from product clips.
- 0:06
Handheld frame that gives a sense of the board's size against a hand.
- 0:06
A moving frame showing the bag lifted off the bench, with the parts loose inside.
Specifications
| Specification | Value |
|---|---|
| Identification | |
| Part number | SW-6007 |
| Manufacturer | Not recorded |
| Condition | New old stock, sealed |
| Date code | Not recorded |
| Package | Circuit board subassembly |
| Country of origin | Not recorded |
| Family | Not recorded |
| Stock number | 9V4JS2MM |
| Identification | |
| Part designation | SW-6007 |
| Name carried with the part number | Science Workshop |
| Assembly type | Circuit board subassembly, not a complete instrument |
| Stated function | Center frequency readout |
| Host instrument | Not identified from any public source |
| Host instruments | Science Workshop SW-5800 and SW-5900 tuners, named in the instructions |
| Project | Part of the Poor Man's Spectrum Analyzer |
| Documentation revision | REV1A on the schematic and figure sheet |
| This kit | |
| What is included | Bare unpopulated PCB, factory stapled antistatic bag of components, and the original instruction packet |
| Date code seen on a supplied part | P9939AB on a DM74LS390N, about week 39 of 1999 |
| Circuit | |
| First IF quoted in the instructions | 610MHz |
| Prescaler output range quoted | 2.38 to 4.33MHz |
| Display range quoted | 0 to 500MHz |
| Supply | Plus 5 V and plus 18 V, terminals marked on the board |
| Active devices | U1 and U2 74LS390, U3 LM331, U4 LM324, Q1 2N5459, Q2 2N3904 |
| Trimpots | R16 Calibrate, R18 Gain, R19 Offset, silkscreened on the board |
About this part
A circuit board marked Science Workshop SW-6007 and described as a center frequency readout. It is a subassembly, not a complete instrument, and no public record was found tying either the SW-6007 number or the Science Workshop name to a manufacturer, an instrument model, or a schematic. Searches across instrument archives, datasheet indexes and general web sources returned nothing for this designation.
PASCO scientific sells a ScienceWorkshop line of teaching laboratory interfaces, but those carry CI prefixed part numbers, and no connection between that line and SW-6007 could be confirmed, so it should not be assumed.
In general terms, a center frequency readout is the section of an instrument that reports the middle of a swept or passed band: on a wave analyzer, tunable filter or spectrum analyzer it converts tuning position into a displayed value and drives a dial, a meter or a digital display. That is background on the phrase, not a claim about this particular board. Buy this only if you can match it to the instrument it came out of, using the silkscreen, the connector pattern, the board outline and the mounting hole positions. Photographs of both sides, the edge connector and any date codes on the components are the practical way to settle what it fits.
Questions about this part
What instrument does this board come from?
Not identified. No public documentation was found linking SW-6007 to a manufacturer or an instrument model. If you recognise the board, that information is welcome, but nothing here should be taken as an identification.
Is Science Workshop the manufacturer?
That name appears with the part number, but no company by that name could be confirmed as making laboratory or test instruments. The manufacturer field is left empty rather than guessed at.
Is this the PASCO ScienceWorkshop product line?
No connection was established. PASCO's ScienceWorkshop teaching interfaces use CI prefixed part numbers, not SW prefixed ones. Treat the similarity in name as unproven.
What does a center frequency readout board do in general?
In a swept or tunable instrument, the center frequency is the middle of the band being displayed or passed. A readout section converts the tuning setting into a number the operator can read. How this specific board implements that is unknown.
Can I use this as a standalone frequency counter?
There is no basis for saying so. Without a schematic, the supply voltages, the input signal it expects and the interface it drives are all unknown. Assume it only works in its original instrument until you have proven otherwise.
What should I check before buying?
Compare photographs against the board in your instrument: silkscreen text and revision, board outline, connector type and pin count, mounting hole positions, and the component date codes. Physical fit is the only evidence available for this part.
Are schematics or a manual available?
None were found. No service documentation, parts list or datasheet for SW-6007 turned up in any archive searched.