When you need to test RF cables, antennas, or telecom gear, you might find yourself choosing between a vintage signal generator and an SWR meter. The EICO Model 324 Signal Generator is sold as operational, while the HP 415E SWR Meter is a restoration project. A $61 price gap separates them, so the real question is whether you prioritize immediate function or are willing to take on a repair project. These two instruments serve different purposes, so the right choice depends on what your bench needs right now.
Quick verdict
If you need a functioning RF signal generator right away, the EICO Model 324 is the safer choice. It's ready for radio frequency testing. The HP 415E is a parts unit, so it's a project rather than a tool. If you're shopping for a signal generator, you'll want a unit that can produce test tones reliably. Choose the EICO for confidence; choose the HP only if you want to restore vintage gear.
Comparison table
| Feature | EICO 324 Signal Generator | HP 415E SWR Meter |
|---|---|---|
| Price | $99.99 | $39.00 |
| Condition | Used, fully working | Used, for parts or not working |
| Type | Signal generator | SWR meter |
| Brand | EICO | HP |
Where each product wins
- The EICO 324 wins if you need a working signal generator now. It's the low-risk pick because it's ready for RF testing. The ready-to-use nature makes it the better match for time-sensitive work.
- The HP 415E wins if you want a low-cost restoration project. At $39, it's much easier on the wallet, but you're accepting that the unit may not work and needs attention. It's a good fit for hobbyists who are willing to invest time in repair.
Product notes
EICO Model 324 Signal Generator
The EICO Model 324 Signal Generator is the higher-priced option at $99.99, but it comes with a fully functional status. It is ready for testing and measuring radio frequencies in industrial and commercial settings, and it was made in the United States. The unit is used, so some wear is expected, but the working condition removes the guesswork. The gray color adds to its vintage appeal. If you need a bench instrument that you can turn on and rely on, this is the one to pick. Its limitation is the cost relative to the HP 415E-you're paying $61 more for the confidence that it works. That makes sense for professionals or serious hobbyists who need accurate results immediately.
Vintage HP 415E SWR Meter
The Vintage HP 415E SWR Meter costs $39.00, making it the more affordable choice. However, it is untested and its condition is for parts or not working. That is a clear warning that it may not function as an SWR meter without repair or replacement parts. The unit is compatible with universal brands, which may mean it can work with a variety of setups once functional. This is a project for someone who enjoys troubleshooting vintage test equipment and has the skills to diagnose RF circuits. The limitation is the risk: with no test results and a parts-only condition, there's no guarantee you'll end up with a working meter. Buy it if you want a low-cost restoration challenge, not if you need a reliable instrument.
Final choice
The decision comes down to your tolerance for risk and repair. If you're setting up a lab or need to verify RF performance in a time-sensitive project, the extra cost of the EICO Model 324 is insurance against downtime. If you're a collector who loves restoring classic test gear and has spare parts, the HP 415E gives you a low-cost starting point, but only if you accept that it may never work. In the end, a working tool is worth more than a shelf piece if your projects depend on it. For most people with a practical need for a signal generator, the EICO is the safer investment.
