Difference between pages "RF-Amp" and "LM380 Rev 2 Assembly Sheet"

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[[File:RF-Amp_Front.png]]
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[[file:AudioAmp380-CAD_Rev2.png]]
  
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== RF Amplifier Features ==
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== Parts List ==
  
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* From [https://zl2ctm.blogspot.com/2020/11/go-qrp-portable-ssb-rig.html Charlie Morris' (ZL2CTM) Go QRP Portable SSB Rig]
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{| class="wikitable"
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** Solid State Design for the Radio Amateur?
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! Qty
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* +22 dB gain
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! Value
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* Input connectors: SMA or BNC
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! RefDes
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* 49x49mm card
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!
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* 4x 4-40 mounting holes
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! Qty
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! Value
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== RF Amplifier Design ==
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! RefDes
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|-
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=== DC operating point ===
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| 3
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| 100nF
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* Ice = 10 mA
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| C1,C3,C8
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* Ve = 0.1 * Vcc = 1.2V
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|
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| 1
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=== Input/Output Transformer ===
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| LM380N
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| U2
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* [http://toroids.info/FT37-43.php FT37-43] toroids
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|-
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** Wideband Transformers 5 - 400 MHz
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| 2
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** Power Transformers 0.5 - 30 MHz
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| 10uF
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| C2,C6
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==== Input Transformer ====
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|
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| 1
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** Input Transformer (T1 on Charlie's - T2 on this board)
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| NE5534
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***  50:75.8 Ohms = 1 : 1.23 turns ratio
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| U1
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**** 9 turns primary, 11 turns on secondary
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|-
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| 1
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=== Output Transformer ===
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| 470uF
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| C4
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** Output transformer (T2 on Charlie's - T1 on this board)
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|
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*** 200:50 Ohms = 2:1 turns ratio
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| 1
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*** 10 turns primary (on transistor collector), 5 turns secondary (towards output)
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| Trimmer, 500
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| RV2
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=== Inductor Values ===
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|-
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| 2
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* Value: FT37-43 10 Turns
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| 100uF
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| C5,C9
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[[file:FT37-43_10_Turns.PNG]]
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|
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| 1
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=== Schematics ===
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| POT, 10K
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| RV1
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[[file:RF_Amp_Schematic-4.PNG]]
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|-
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| 1
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== LT Spice Simulation ==
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| 0.47uF
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| C7
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=== Transformer 1.5 uH ===
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|
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| 1
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[[File:RF-AMP-LTSPICE.PNG]]
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| DCJ0202
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| J3
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=== Transformer 35 uH ===
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|-
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| 1
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[[File:RF-AMP-LTSPICE_35uH.PNG]]
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| 51, 1/4W
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| R1
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== Charlie Morris Schematics ==
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|
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| 2
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* From [https://zl2ctm.blogspot.com/2020/11/go-qrp-portable-ssb-rig.html Charlie Morris' (ZL2CTM) Go QRP Portable SSB Rig]
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| RCA-JACK
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| J1,J2
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=== IF AMP ===
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|-
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| 1
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[[FILE:IF Amp_0046A.jpg]]
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| 10, 1/4W
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| R2
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[[FILE:IF Amp_0046B.jpg]]
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|
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|
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[[FILE:IF Amp_0046C.jpg]]
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|
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|
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[[FILE:IF Amp_0047A.jpg]]
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|-
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| 2
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[[FILE:IF Amp_0047B.jpg]]
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| 10K, 1/4W
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| R3,R4
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[[FILE:IF Amp_0047C.jpg]]
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|
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|
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== Video ==
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|
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|
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<video type="youtube">CHdtoupH2Vg</video>
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|-
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| 1
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<video type="youtube">YJTsWV2kzFY</video>
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| 2.7, 1/4W
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| R5
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<video type="youtube">xPFzFhM0ojE</video>
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|
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|
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== Assembly Sheet ==
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* [[RF Amplifier Assembly Sheet]]
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|-
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|}

Revision as of 17:58, 4 November 2021

AudioAmp380-CAD Rev2.png

Parts List

Qty Value RefDes Qty Value RefDes
3 100nF C1,C3,C8 1 LM380N U2
2 10uF C2,C6 1 NE5534 U1
1 470uF C4 1 Trimmer, 500 RV2
2 100uF C5,C9 1 POT, 10K RV1
1 0.47uF C7 1 DCJ0202 J3
1 51, 1/4W R1 2 RCA-JACK J1,J2
1 10, 1/4W R2
2 10K, 1/4W R3,R4
1 2.7, 1/4W R5
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