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Vintage Test Gear and Workshop Equipment For discussions about vintage test gear and workshop equipment such as coil winders. |
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26th Oct 2018, 9:33 am | #1 |
Dekatron
Join Date: Feb 2003
Location: Cottingham, East Yorkshire, UK.
Posts: 5,737
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Hunts CRB Bridge - Annotated circuit
There was a recent request in a now closed wanted thread, for a copy of the Hunts CRB and a copy was duly uploaded. However, for some odd reason, though Hunts included the circuit in the manual, rather unhelpfully, it had no markings as to the values of resistors and capacitors.
Some time ago I came across a copy of the circuit on which hand-written values had been added, so I cleaned the circuit up a bit, removing the handwriting and added printed values. I don't have a CRB so can't confirm whether the values are correct, but for what it's worth, I've attached the circuit that I annotated, which might be of help to someone.
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David. BVWS Member. G-QRP Club member 1339. |
26th Oct 2018, 10:09 am | #2 |
Dekatron
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 13,454
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Re: Hunts CRB Bridge - Annotated circuit
Ron Bryan did a full schematic for the Hunts CRB in Post#1 in the link below showing the rectifier connected the correct way round (in modern terms) complete with some voltage measurements and all the component values:
https://www.vintage-radio.net/forum/...d.php?t=141358 Lawrence. |
26th Oct 2018, 2:04 pm | #3 | |
Dekatron
Join Date: Feb 2003
Location: Cottingham, East Yorkshire, UK.
Posts: 5,737
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Re: Hunts CRB Bridge - Annotated circuit
Quote:
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David. BVWS Member. G-QRP Club member 1339. Last edited by David G4EBT; 26th Oct 2018 at 2:16 pm. |
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