Simpson 305 Valve characteristic meter
Manufacturer:
Model:
305
Date:
1954
Category:
Group:
Description:
Tube Tester

Information

There are several types of tube-testers for the serviceman. Simpson manufactures all different accepted types. Among these, the Simpson Models 305 and 305RC are the most modest in price. But this does not mean that they are limited in performance of necessary functions. Such instruments are simply not produced by Simpson, because Simpson does not manufacture to sell at a price. First consideration is the design of an instrument that will do a thorough job. Simpson Models 305 and 305RC are designed to provide accurate testing for all tubes with filament voltages from .5 volts to and including 120 volts. It tests loctals, single ended tubes, bantams, midgets, miniatures, ballast tubes, gaseous rectifiers, acorn tubes, Christmas tree bulbs, and all popular radio receiver tubes. Like other Simpson tube-testers, the 305's incorporate 3-way switching which makes it possible to test any tube regardless of its base connections or the internal connections of its elements. This method, the result of exhaustive research and expensive construction, protects the Model 305's against obsolesence. No adapters or special sockets are required. In addition to having a complete set of sockets for every tube now on the market, this tester has a spare socket, to provide for future tube developments. On the Model 305RC, the "No-Backlash" Roll Chart prevents the chart from being torn or from getting out of alignment by automatically keeping chart in constant tension. This gives precision selection at all times. If you will remove the Roll Chart unit you will see the very superior Simpson construction throughout. It is, beyond question, the finest roll chart mechanism, in design and in quality manufacture, on any tube tester today.

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User Manual
Manual type:
User Manual
Pages:
26
Size:
1.34 Mbytes (1400850 Bytes)
Language:
english
Revision:
Manual ID:
Date:
Quality:
Electronic document, no scan, very well readable.
Upload date:
22 November 2014
MD5:
c5357af7d3e9ec4538e966abb32469b3
Downloads:
1008
User Manual
Manual type:
User Manual
Pages:
26
Size:
1.34 Mbytes (1410179 Bytes)
Language:
english
Revision:
Manual ID:
Date:
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
23 November 2014
MD5:
ff661b6f064bf22de375411176bc8f6c
Downloads:
966

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