obsolete resistor

[shortcircuit]

Changed out the filter cap on Hilgen Troubadour , it had (2) 5watt 2.2k resistors mounted across it , they measure close to a max 10% tolerance 2437 & 2315 ohms . I have only been able to find 5w 2k and 2.7k block resistors , can order 2.2k blocks from china , maybe months before they arrive . What to do ?? trust the originals and call it good ??

[Bloomfield]

Just checked Digikey and Mouser, they have lots of options for 2.2K. Might have 2.4K as well if you'd prefer.

[Jazz P Bass]

The 2.2K resistors are dropping resistors for the preamp.

I would not hesitate to leave them alone.

hilgen_model_t-1506_troubadour_-_rev_a.pdf

[Mick Bailey]

+1. Unless they're faulty leave them alone. Being close to tolerance isn't an issue.

[shortcircuit]

Just checked Digikey and Mouser, they have lots of options for 2.2K. Might have 2.4K as well if you'd prefer.

I did find them at Digikey , filter zero'd out when I checked before thanks.

[shortcircuit]

The 2.2K resistors are dropping resistors for the preamp.

I would not hesitate to leave them alone.

[ATTACH]47768[/ATTACH]

Thank You once again Jazz P Bass , I did find them at Digikey , but I will go with the originals

[shortcircuit]

Thank You once again Jazz P Bass , I did find them at Digikey , but I will go with the originals

would changing the 2.2k carbon resistors with 2.2k wire wound change the tone of the amp ??

[eschertron]

Short answer: no.
Longer answer: the primary characteristic difference between CC and wirewound resistors is that CC have a higher intrinsic noise (hiss) that can be audible in certain parts of the circuit. Power supply? Not significant. A secondary characteristic is that CC resistors will drift with voltage, heat, and time. Yours have already drifted, and are a few % higher than nominal. Replacing them with a resistor of the 'correct' 2.2k value will have a bigger change on the sound of the amp than changing the resistor composition. CAVEAT: random swapping in search of some kind of tonal 'grail' is rarely fruitful. I see no reason to remove what you have for those resistors. They should be fine for another 50 years.

[shortcircuit]

Short answer: no.
Longer answer: the primary characteristic difference between CC and wirewound resistors is that CC have a higher intrinsic noise (hiss) that can be audible in certain parts of the circuit. Power supply? Not significant. A secondary characteristic is that CC resistors will drift with voltage, heat, and time. Yours have already drifted, and are a few % higher than nominal. Replacing them with a resistor of the 'correct' 2.2k value will have a bigger change on the sound of the amp than changing the resistor composition. CAVEAT: random swapping in search of some kind of tonal 'grail' is rarely fruitful. I see no reason to remove what you have for those resistors. They should be fine for another 50 years.

Thanks for the reply , much appreciated