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a solid deal - quick and without any problems.
I life in europe - with downloads no loosing time
once again
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got exactly what i ordered in a very timely manner. will use again for other manuals
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I'm happy. Good quality. Very helped me with my work..............................
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This is the second Manual I have ordered from owner-manuals, I give it five stars because it is exactly what I expected given the age of the equipment. So the contents look a bit aged and the pictures a bit grainy, it fulfills my needs and I am glad I can still get hold of them.
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thank u so much for this manual that was so cheap that i thought it was a scam but i gambled anyway because it was too good of a deal to pass up and behold,the manual has everything and details of everything even the screws and im still amazed and very happy with my manual .so take my word and jump on it before they realize how cheap they selling thier manuals..thank you so much for taking time to read my thoughts
Model 739A
Page 1
SECTION I DESCRIPTION
The @ Model 739A Frequency Response Test Set simplifies frequency response determination by providing a convenient constant amplitude reference voltage of variable frequency. Frequency response of vacuum tube voltmeters, oscilloscope, video amplifiers and filters from 5 cps to 10 mc* can be quickly and easily checked. attenuator reduces the signal to an appropriate output level which appears a c f o s s 50 ohms a t the end of the special output cable supplied.
.30-IO MC
ATTEN. IOdb STEPS
The Frequency Response Test Set contains a wide range oscillator, special voltmeter and s t e p attenuator a s shown in Figure 1. The osciilator generates constant amplitude signals between 300 kc and 10 mc. The monitoring circuit is flat from 5 cps to 10 m c so that an external oscillator s u c h a s @ Model 200s can be used to reduce the lower frequency limit to as low a s 5 cps. Oscillator output is applied to the monitoring voltmeter, which samples the input to a stepattenuator. An arbitrary reference level is maintained on the monitoring meter as the frequency setting is varied. The
METER
SET
50
2
5 0
5
MONITOR
E n INPUT
RO
Figure 1. Model 739A Block Diagram
SPECIFICATIONS
FREQUENCYRANGE: INTERNAL OSCILLATOR: REQUIREMENTS FOR EXTERNAL OSCILLATOR: FREQUENCY RESPONSE OF MONITORING CIRCUIT: OUTPUT:
5 cycles* to 10 mc.
300 kc to 10 m c in 3 ranges.
Frequency range 5 CPS to 300 kc requires 3 volts into 50 ohms, distortion less than 1%.
Flat within 50.5% from 10 CPS to 5 mc; within+0.5%, -l.S%, 5 cps to 10 mc. Monitor circuit is average responding.
At least 3 volts a c r o s s 50 ohm cable termination. Adjustable in 10 db steps by a Oto70 db attenuator. Fine adjustment provided. Rack Mount: 7 in. high, 19 in. wide, 9 in. deep. 739A-16A Output Cable, 50 ohm termination. BNC to shielded dual banana plug, (extra cables available on special order).
DIMENSIONS: ACCESSORIES FURNISHED
*
Extended frequency range when used with @ Model 200s Oscillator.
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