Perhaps I should have rephrased my question better. My main question is on how to avoid making mistakes while soldering circuits in order to save hours of troubleshooting,
I usually breadboard the circuits first, which almost always tends to work. But once I try to make the circuit more permanent, the circuits tend to not work.
Well that's interesting ...
That seems bass-ackwards to me. If you are sure you didn't mis-type that, then we'd have to be scientific about the reason. Two things that come to mind are that breadboards would tend to have higher resistance contacts than a good solder joint if they have been used a lot or are of low quality, and can have some capacitance there between rails, albeit not a lot probably in the low pF range. I think Dave did a video on how much.
Perhaps you have had a streak where some higher resistance in certain places made the circuit work, and when you soldered it the lower resistance made it not work? I don't know I'm just brainstorming.
I didnt mistype the statement, I've had more success on breadboard than on perfboards. My guess is that breadboard is easier to work with than perfboard, as im not focused on soldering. However, the PCB that I made was already laid out, yet it did not work.
In both cases check that 555 actually starts and generates frequency.
How exactly do you do a permanent assembly? On a protoboard? Can you show some pictures?
To use the geiger counter circuit as an example, I check if the 555 timer circuit is functioning properly by measuring if a high voltage is present or not. But my probelem with the griger counter circuit is always with the tone generation/counting part of the circuit.
Also, some examples of my attempts at making a geiger counter circuit are in the attachments.
After hours of troubleshooting, some of the circuits still fail to work properly.
The first question that comes to mind is: For the circuits that you DID get working ... What was the problem you fixed?
The probelms that I fixed were mostly wiring errors.
The second question comes from the difference between construction on a breadboard and on other substrates.... How are your soldering skills, what equipment do you use and what settings do you use (if there are any)?
How exactly do you do a permanent assembly? On a protoboard? Can you show some pictures?
Pictures could be very helpful.
I would say my soldering skills are fairly decent, (images of my soldering are in the attachments). The soldering iron I use is a Hakko FX-888D soldering station, of which I usually solder at 680-720°F.
Are you buying real name-brand parts from a local electronic parts distributor or cheap Chinese fake parts from ebay?
For most of the resistors and capacitors, I use resistor and capacitor kits off of ebay (I make sure to check their values eith a multimeter), but for semiconductors and some special resistors and capacitors I use digikey to order the components.
Also thanks to all who have replied.