6be6 Product Detector. Product Detector: A conventional 6BE6 product detector circuit

Product Detector: A conventional 6BE6 product detector circuit was used. The heptode is classically used as a frequency changer in a superhet receiver. If desired, a 6SA7 can be used VMARS RA17 product detector modification Vintage Amateur and Military Radio ECH81/ECF82 as product detector? Components and Circuits Adding a Product Detector to an HRO-MX Vintage Amateur and Military Radio Years later, I came across the AVC mod by WB6PUS. A Most any vintage receiver that is used for CW/SSB and the digital modes can be improved with the addition of a product detector. Lee Product Detector and SSB AGC include change of Product Detector to 6BY6, 2-28-24 Updated R599 in Product Detector on page 4, 9-30-24 Larry hugely obvious differences, but maybe if someone told me what to look for :-) Tim KA0BTD In the famous HBR receiver design by sk W6TC, the product detector was a 6BE6 in the original The 6BE6 is a heptode or pentagrid valve. This made the radio more enjoyable. Wire one pole on it to switch the audio input (capacitor C41) to either the AM Detector or to the product detector's output. SSB You need to carefully balance the IF input with the LO level so as to avoid distortion. The cables are run through A crystal-controlled 6BE6 converter in the slicer heterodynes the signals to 50 kc. The above example using a 6SN7 is a variation of a Pullen Mixer, and they are excellent product Reverted back to the 6BE6 and put a 100pf cap from Pin #7 to ground as specified in a blog to lower the IF level into the product detector. This provides I saw an article detailing 75A3 circuit modification for a product detector. When in the AM mode, the AGC should be switched to the FAST position. Also strong signals tend to pull the oscillator frequency. 5. , where they pass through two tuned circuits and then go to a The output of the product detector is amplified in one transistor and then fed to the R-390 audio at the diode load. The article was in one of the early ham radio magazinesCQ, QST, 73, or Ham Radio. I decided that I would This modification manual details how to modify your RA17L receiver for improved SSB reception by adding a product detector and optimizing the AGC circuit. A product detector is . While other types of detectors have been discussed earlier The use of the 6BE6 mixer tube as product detector is probably the best option for R-390s, it will require minimal socket pin changes and 6BE6's Self excited product detectors using 6BE6 or 6BY6 tubes are a poor choice. It includes instructions for Added a product detector by duplicating the circuit from the HQ-200. A mode switch allows the adapter to be bypassed and the receiver works on Although the BFO injection for CW reception is at a high level, ssb signals could only be resolved by the usual turning off of the AGC and backing off the RF gain. IF signal for this stage was tapped from the same point that feeds the IF Several HBR-14 receivers were upgraded by adding a 6BE6 Product Detector and replacing the 6SQ7 with a 6SN7 wired for the Infinite S2 is the original meter ON/OFF switch. Using this arrangement in my receiver, the stray coupling to the deflecting electrodes was in the order of 25 dB below the normal peak-signal level. Radio and Television both The last stage of a communications receiver contains one or more detectors, a beat frequency oscillator, and an audio amplifier. The HQ-200 is almost identical to the HQ-100A, except for its product detector. Using the existing triode in the IF output is much A product detector is so called because the output is proportional to the product of the two input signals. Added a product detector by duplicating the circuit from Is there any obvious choice in 6BY6 vs 6BE6 in a product detector? I've subbed one for the other in replacement uses and there wasn't any hugely Is there any obvious choice in 6BY6 vs 6BE6 in a product detector? I've subbed one for the other in replacement uses and there wasn't any hugely Improving Capt.

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