You may also consider to use a PC or laptop with a reasonable good audio card for measuring the audio spectrum. You can also use it as a digital oscilloscope and depending on the software you use you can make THD measurements, bode plots using a sweep generator, etc.. There are some good free software alternatives, so probably you don’t have to invest much to use this for your measurements.
Regards, Gerrit
Regards, Gerrit
For parts i can suggest TME its a very good supplier, they have most of the resistors that you listed in 2W metal film made by royal ohm. They are rather inexpensive at about 6 cents each per 100. 2W is more then enough for most plate loads. your initial range of values is good enough, 100K, 220k and 470K is what i use the most from these resistors.
TME also carries axial polypropylene made by JB capacitors. Those are good quality.
If you order from Farnell, they have Vishay MKT1803 axial film capacitors, those are extremely high quality, but rather expensive. Farnell in general is much more expensive than TME.
Sockets, this depends on how you build. I myself design my own PCB's therefore i have some chinese PCB mount sockets on stock. If you use PCB's as well a small supply of Wima MKP-10 capacitors might be useful.
However for hardwiring the Belton sockets are very good. I especially like their octals.
As for tubes the 6N1P/6N2P/6N3P make cheap dual triodes to start.
6P14P is a inexpensive EL84 equivalent.
6P1P is still available for low prices per tube. They are like a noval version of the 6V6GT and can be used for amplification and regulator duty.
6P1P - Wikipedia
The 6C19P is a very sturdy 11W low RI triode designed for pass regulator duty. that can also be used for OTL or headphone amplifiers.
GU50 power tetrodes are the best bang for your buck when it comes to output tubes if you can tolerate their aesthetics. JJ EL34 is a good go-to for a starter.
GM70 is a relative inexpensive directly heated transmitting tube, however i would not suggest this for an inexperienced builder.
As for semiconductors:
You can build a nice bench supply using a LM317HV and a few big tubes, this is the simplest way to design a wide output voltage tube based
Oscilloscope: A cheap analog 10/20Mhz dual beam oscilloscope is all you need. However if you have the cash a Rigol DS1054Z is a good choice for a digital scope.
TME also carries axial polypropylene made by JB capacitors. Those are good quality.
If you order from Farnell, they have Vishay MKT1803 axial film capacitors, those are extremely high quality, but rather expensive. Farnell in general is much more expensive than TME.
Sockets, this depends on how you build. I myself design my own PCB's therefore i have some chinese PCB mount sockets on stock. If you use PCB's as well a small supply of Wima MKP-10 capacitors might be useful.
However for hardwiring the Belton sockets are very good. I especially like their octals.
As for tubes the 6N1P/6N2P/6N3P make cheap dual triodes to start.
6P14P is a inexpensive EL84 equivalent.
6P1P is still available for low prices per tube. They are like a noval version of the 6V6GT and can be used for amplification and regulator duty.
6P1P - Wikipedia
The 6C19P is a very sturdy 11W low RI triode designed for pass regulator duty. that can also be used for OTL or headphone amplifiers.
GU50 power tetrodes are the best bang for your buck when it comes to output tubes if you can tolerate their aesthetics. JJ EL34 is a good go-to for a starter.
GM70 is a relative inexpensive directly heated transmitting tube, however i would not suggest this for an inexperienced builder.
As for semiconductors:
- 1N4007/UF4007 general purpose 1KV diodes
- BY2000 general purpose 2KV diodes.
- SB560 inexpensive 60V 5A skottkey diode for heater supply.
- 10M45s for plate load on medium Ri triodes.
- TL783 regulators one or two, as these can be used for stabilizing up to 125V for bias supplies ect.
- LM317 is nice to have.
- LD1085 3A low dropout regulators, these can be used for DC heater supplies.
You can build a nice bench supply using a LM317HV and a few big tubes, this is the simplest way to design a wide output voltage tube based
Oscilloscope: A cheap analog 10/20Mhz dual beam oscilloscope is all you need. However if you have the cash a Rigol DS1054Z is a good choice for a digital scope.
