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Reviews For: Swan 350D

Category: Transceivers: HF Amateur HF+6M+VHF+UHF models - non QRP <5W

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Review Summary For : Swan 350D
	Reviews: 1	MSRP:
	Description: Hybrid design SSB/CW 80M thru 10M transceiver with a digital display. Twelve tubes with a single 6MJ6 RF final for 125 watts PEP/CW output. SSB crystal and audio based CW filter are standard. The Swan model 350D was the last of the model 350 series. The model 350A was the analog dial version.
	Product is not in production
More Info: http://
# last 180 days	Avg. Rating last 180 days	Total reviews	Avg. overall rating
0	0	1	4

N8FVJ	Rating:	2015-09-23
Sensitive Receiver & Drifty			Time Owned: 0 to 3 months.
The Swan 350D is the last of that model number series. The first Swan 350 was released in 1965. The 350D appeared in 1977 and ceased production in 1979. The Swan 350 series evolved into a hybrid design. The 350D has three solid-state modules (less digital display). The VFO is solid-state. The receiver is a simple single conversion design with two IF sections. A SSB 8 pole crystal filter is rated at 2.8 KHz bandwidth and 60dB point is 4.7 KHz. Two audio based CW filters are included. Bandwidth is 100 KHz & 80 KHz. The receiver is not as quiet as a National NCX-5, however is quite sensitive. Carefully adjusting the RF gain does provide good reception. For unknown reasons, Swan used the seriously outdated sharp cutoff 6CB6 as an RF amplifier. Collins made the same mistake using the 6CB6. The 6CB6 has poor AGC performance. Collins finally replaced the tube with a 6BZ6. Later Collins used a 6DC6, but the 6BZ6 is better. I recommend replacing the 6CB6 with a 6BZ6. The receiver does not have a selectable AGC like most tube type transceivers. The AGC is a little fast, but not annoying on SSB signals. The AGC is works well with CW. Although I do not work CW (shame), the Swan 350 does provide side tone and should make for a reasonable CW transceiver. Swan obviously had this in mind with the on board CW filters. The transceiver has a lot of drift during warm up. It settles down after 30 minutes. The digital display is spot on frequency. The output is 125 watts PEP & CW. Unlike the original Swan 350, the 350D only uses one 6LQ6 RF final tube. Actual tube is a 6MJ6. A 6LQ6 is a plug-in replacement. Swan stated the 6MJ6 plate is 40 watts dissipation vs the 6LQ6 30 watts. The Swan 350D provides a lot of fun on the ham bands.

Category:

Transceivers: HF Amateur HF+6M+VHF+UHF models - non QRP <5W

Product:

Swan 350D

Summary:

Rating:	Time Owned:
Great! Good OK Needs Help Poor Awful!	0 - 3 Months 3 - 6 Months 6 - 12 Months More than 12 Months

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